EMC TEST REPORT For Suzhou Omnik New Energy Co., Ltd Solar Inverter Model No. : (1) Omniksol-3K-TL (2) Omniksol-4K-TL Brand : Omnik

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2 Page 1 of 71 EMC TEST REPORT For Suzhou Omnik New Energy Co., Ltd Solar Inverter Model No. : (1) Omniksol-3K-TL (2) Omniksol-4K-TL Brand : Omnik Prepared for Suzhou Omnik New Energy Co., Ltd Xinghu Road No. 218 Bio-Nano Park C2-304, Suzhou China Prepared by No.1289 Jiangxing East Road, the Eastern Part of Wujiang Economic Development Zone Jiangsu China Tel.: Fax: Report Number : ACWE-E Date of Test : Aug.02~Sep.08, 2011 Date of Report : Aug.26, 2011

3 Description TABLE OF CONTENTS Page 2 of 71 Page TEST REPORT VERIFICATION SUMMARY OF STANDARDS AND RESULTS Description of Standards and Results Description of Performance Criteria GENERAL INFORMATION Description of Device (EUT) EUT s Specification under application Operating Condition of EUT Tested Supporting System Details Description of Test Facility Measurement Uncertainty CONDUCTED DISTURBANCE MEASUREMENT Test Equipment Block Diagram of Test Setup Limits for Conducted Disturbance Voltage Test Procedure Measurement Results RADIATED DISTURBANCE MEASUREMENT Test Equipment Block Diagram of Test Setup Limits for Radiated Disturbance (30MHz~1000MHz) Test Procedure Measurement Results POWER HARMONICS AND FLICKER MEASUREMENT Test Equipment Block Diagram of Test Setup Test Standard Test Procedure Test Results ELECTROSTATIC DISCHARGE IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results RF FIELD STRENGTH IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results...47

4 Page 3 of 71 9 SURGE IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results CONDUCTED DISTURBANCE IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results VOLTAGE DIPS AND INTERRUPTIONS IMMUNITY TEST Test Equipment Block Diagram of Test Setup Test Standard Severity Levels and Performance Criterion Test Procedure Test Results PHOTOGRAPHS Photos of Conducted Disturbance Measurement Photos of Radiated Disturbance Measurement at 10m Semi-Anechoic Chamber Photos of Electrostatic Discharge Immunity Test Photos of RF Field Strength Immunity Test Photos of Electrical Fast Transient Immunity Test Photos of Surge Immunity Test Photos of Conducted Disturbance Immunity Test Photos of Power Frequency Magnetic Field Immunity Test Photos of Voltage Dips and Interruptions Immunity Test...71 APPENDIX Photos of EUT

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6 Page 5 of 71 1 SUMMARY OF STANDARDS AND RESULTS 1.1 Description of Standards and Results The EUT have been tested according to the applicable standards as referenced below. EMISSION (EN :2007& EN :2007) Description of Test Item Standard Limits Results Conducted disturbance at main terminal Conducted common mode disturbance at telecommunication port Radiated disturbance EN :2007& EN :2007 EN :2007& EN :2007 EN :2007& EN :2007 Class B Class B Class B PASS Note PASS Harmonic current emissions EN :2005 Stage 2 PASS Voltage fluctuations & flicker Description of Test Item Electrostatic discharge (ESD) Radio-frequency, Continuous radiated disturbance Electrical fast transient (EFT) EN :2000 P st =1 dc(%)=3.3% dmax.(%)=4% d(t)>3.3%=500ms IMMUNITY (EN :2007 & EN :2005) Basic Standard Performance Criteria PASS Results IEC :2008 B PASS IEC :2008 A PASS IEC :2004 +Corr.1:2006+Corr.2:2007 B PASS Surge IEC :2005 B PASS Radio-frequency, Continuous conducted disturbance Power frequency magnetic field Voltage dips, >95% reduction Voltage dips, 30% reduction IEC :2008 A PASS IEC :2009 A PASS IEC :2004 B C PASS PASS Voltage interruptions C PASS Note : Due to the EUT doesn t have telecommunication port; this test item of the telecommunication terminal is not applicable for it.

7 Page 6 of Description of Performance Criteria The variety and the diversity of the apparatus within the scope of this standard makes it difficult to define precise criteria for the evaluation of the immunity test results. If, as a result of the application of the tests defined in this standard, the apparatus becomes dangerous or unsafe, the apparatus shall be deemed to have failed the test. A functional description and a definition of performance criteria, during or as a consequence of the EMC testing, shall be provided by the manufacturer and noted in the test report, based on one of the following criteria for each test as specified in Tables 1 to Performance criterion A The apparatus shall continue to operate as intended during and after the test. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer, when the apparatus is used as intended. The performance level may be replaced by a permissible loss of performance. If the minimum performance level or the permissible performance loss is not specified by the manufacturer, either of these may be derived from the product description and documentation and what the user may reasonably expect from the apparatus if used as intended Performance criterion B The apparatus shall continue to operate as intended after the test. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer, when the apparatus is used as intended. The performance level may be replaced by a permissible loss of performance. During the test, degradation of performance is however allowed. No change of actual operating state or stored data is allowed. If the minimum performance level or the permissible performance loss is not specified by the manufacturer, either of these may be derived from the product description and documentation and what the user may reasonably expect from the apparatus if used as intended Performance criterion C Temporary loss of function is allowed, provided the function is self-recoverable or can be restored by the operation of the controls.

8 Page 7 of 71 2 GENERAL INFORMATION 2.1 Description of Device (EUT) Product : Solar Inverter Model Number : (1) Omniksol-3K-TL (2) Omniksol-4K-TL Remark: The difference between these two models are in marketing purpose and the Power as below, the PCB s Layout are all the same. The number Omniksol-4K-TL was chosen as a representative to test and the data is recorded in this report. Model No. Omniksol-3K-TL Omniksol-4K-TL Power 3kV 4kV Test Model Number : Omniksol-4K-TL Brand : Omnik Applicant : Suzhou Omnik New Energy Co., Ltd Xinghu Road No. 218 Bio-Nano Park C2-304, Suzhou China Manufacturer : Suzhou Omnik New Energy Co., Ltd Xinghu Road No. 218 Bio-Nano Park C2-304, Suzhou China Date of Receipt of Sample : Aug.02, 2011 Date of Test : Aug.02~Sep.08, 2011

9 Page 8 of EUT s Specification under application Type Omniksol-3k-TL Omniksol-4k-TL Input (DC) Max. PV-Generator Power (W) Max. DC Voltage (V) MPPT DC Voltage Range (V) Turn off DC Voltage (V) Max. DC Current (A) Nominal DC Current (A) Turn on Power (W) Output (AC) Max. AC Power (V) Nominal AC Power (W) Max. AC Current (A) Nominal AC Current (A) Operating Condition of EUT Set up the EUT as showed each respective block diagram of test setup Turn on the power of the EUT Connect the DC Power Supply and let the EUT under Full Load/Half Load for EMI test and 10% Load for EMS test. 2.4 Tested Supporting System Details DC Power Supply Manufacturer : Topcon Model Number : TC.P PV.HMI Input Power : AC: 3*400V, 3*21A Output : 0~10kW, 0~800Vdc, 0~16A

10 Page 9 of Description of Test Facility Name of Firm #1 : Site Location #1 : No Jiangxing East Road, the Eastern Part of Wujiang Economic Development Zone Jiangsu China Test Facilities : No.1 10m semi-anechoic chamber No. 2 conducted shielding enclosure The Complex Immunity Test Room RS&CS Test Room Name of Firm #2 (Harmonic & Flicker Test) : Suzhou Electrical Apparatus Science Research Institute Stock Co., Ltd Site Location #2 : No.7 Yonghe Street, Binghe Road, New District, Suzhou, Jiangsu Province, P.R. CHINA CNAS No. (For Name of Firm #2) : CNAS L1020 Valid date until on Jan.05, 2012 NVLAP Lab Code : (NVLAP is a NATA accredited body under Mutual Recognition Agreement) Valid date until on Sep.30, 2011 DAR-Registration No. : DAT-P-264/07-00 Valid date until on Dec.14, Measurement Uncertainty Test Item Range Frequency Uncertainty Conducted Disturbance Measurement at mains 0.15MHz ~ 30MHz ± 2.76dB At 10m Semi-Anechoic Chamber Radiated Disturbance Measurement Remark:Uncertainty = ku c (y) 30MHz ~ 1000MHz ± 3.26dB (Horizontal) ± 3.49dB (Vertical)

11 Page 10 of 71 3 CONDUCTED DISTURBANCE MEASUREMENT 3.1 Test Equipment The following test equipment was used during the conducted emission measurement: For AC Mains Port Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Test Receiver R & S ESCI L.I.S.N.#1 Schwarzbeck NNLK L.I.S.N.#2 Kyoritsu KNW ohm Terminator Tektronis MS4630B 001-con RF Cable Harbour Industries RG Block Diagram of Test Setup Block Diagram of Test Setup for AC mains Port AC POWER SOURCE A.M.N. TEST RECEIVER PERSONAL COMPUTER EUT DC Power Supply PRINTER : POWER LINE : SIGNAL LINE

12 Page 11 of Limits for Conducted Disturbance Voltage Limits for conducted disturbance at the mains ports (Class B) Maximum RF Line Voltage Frequency Quasi-Peak Level Average Level 150kHz ~ 500kHz 66 ~ 56 dbμv 56 ~ 46 dbμv 500kHz ~ 5MHz 56 dbμv 46 dbμv 5MHz ~ 30MHz 60 dbμv 50 dbμv Remark 1. If the average limit is met when using a Quasi-Peak detector, the EUT shall be deemed to meet both limits and measurement with the average detector is unnecessary. 2. The lower limit applies at the band edges. 3.4 Test Procedure The measuring process is according to EN :2007 & EN :2007, Class B and laboratory internal procedure TKC In the conducted emission measurement, the EUT and all peripheral devices were set up on a non-metallic table which was 0.8 meters height above the ground plane, and 0.4 meters far away from the vertical plane. The EUT was powered by AC mains through Artificial Mains Network (A.M.N), other peripheral devices were powered by AC mains through the second Line Impedance Stabilization Network (L.I.S.N). For the measurement, the A.M.N measuring port was terminated by 50Ω measuring equipment and the second L.I.S.N measuring port was terminated by a 50Ω resistive load. All measurements were done on the phase and neutral line of the EUT s power cord. All cables or wires placement were verified to find out the maximum emission. The bandwidth of measuring receiver was set at 9 khz. The required frequency band (0.15 MHz ~ 30 MHz) was pre-scanned with peak detector; the final measurement was measured with quasi-peak detector and average detector. The emission level is calculated automatically by the test system which uses the following equation: Emission level (dbμv) = Meter-Reading (dbμv) + A.M.N factor (db) + Cable loss (db). (Cable loss include pulse limiter loss)

13 Page 12 of Measurement Results PASSED. (All the emissions not reported below are too low against the prescribed limits.) EUT with the following test modes were performed during this section testing and all the test results are listed in next pages. Test Date:Aug.24, 2011 Temperature:27 Humidity:51% Reference Test Data Item Test Condition No. Neutral Line 1 Half Load # 1 # 2 2 Full Load # 3 # 4 NOTE 1 - means the worst test mode. NOTE 2 - The worst emission is detected at 0.22 MHz with emission level of db (μv) (limit is db (μv)) with AV detector, when the Line of the EUT is connected to A.M.N. NOTE 3 - Because EN limit is more rigorous, so when the test results satisfies EN requests, regards as simultaneously meets EN requirements, therefore does not need to retest.

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18 Page 17 of 71 4 RADIATED DISTURBANCE MEASUREMENT 4.1 Test Equipment The following test equipment was used during the radiated emission measurement: (At 10m Semi-Anechoic Chamber) Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Spectrum Analyzer Agilent E7405A MY Spectrum Analyzer Agilent E7405A MY Pre-Amplifier Agilent 8447D 2944A Pre-Amplifier Agilent 8447D 2944A Bi-log Antenna (Horizontal) Schaffner CBL6112D Bi-log Antenna (Vertical) Schaffner CBL6112D Test Receiver R&S ESCI Ω Coaxial Switch # 1 ANRITSU MP59B Ω Coaxial Switch # 2 ANRITSU MP59B Ω Coaxial Switch # 3 ANRITSU MP59B RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH RF Cable Yuhang CSYH

19 Page 18 of Block Diagram of Test Setup Block Diagram of connection between EUT and simulators AC POWER SOURCE EUT DC Power Supply : POWER LINE No. 1 10m m Semi-Anechoic Chamber Setup Diagram (Test distance: 10m) For 30MHz~1000MHz ANTENNA TOWER ANTENNA ELEVATION VARIES FROM 1 TO 4 METERS 10 METERS EUT TURN TABLE 0.8m GROUND PLANE 4.3 Limits for Radiated Disturbance (30MHz~1000MHz) FREQUENCY DISTANCE FIELD STRENGTHS LIMITS (MHz) (Meters) (dbμv/m) 30 ~ ~ Note: (1) The tighter limit shall apply at the edge between two frequency bands. (2) Distance refers to the distance in meters between the measuring instrument antenna and the closed point of any part of the E.U.T.

20 Page 19 of Test Procedure The measuring process is according to EN :2007 & EN :2007 and laboratory internal procedure TKC In the radiated disturbance measurement, the EUT and all simulators were set up on a non-metallic turn table which was 0.8 meters above the ground plane. Measurement distance between EUT and receiving antennas was set at 10 meters at 30MHz~1000MHz. The specified distance is the distance between the antennas and the closest periphery of EUT. During the radiated measurement, the EUT was rotated 360 and receiving antennas were moved from 1 ~ 4 meters for finding maximum emission. Two receiving antennas were used for both horizontal and vertical polarization detection for 30MHz~1GHz. All cables or wires placement were verified to find out the maximum emission. The bandwidth of measuring receiver (or spectrum analyzer) was set to: RBW (120 khz), VBW (300 khz) for QP detector below 1GHz RBW (1 MHz), VBW (1MHz) for Peak detector above 1GHz RBW (1 MHz), VBW (10 Hz) for Average detector above 1GHz which is defined against CISPR The required frequency band (30 MHz ~ 6000 MHz) was pre-scanned with peak detector; all final measurements were measured with quasi-peak detector below 1GHz, measured with average detector and peak detector above 1GHz. The emission level is calculated automatically by the test system which uses the following equation: 1. For MHz measurement: Emission Level (dbμv/m) = Meter-Reading (dbμv)+antenna Factor (db/m)+cable Loss (db) In chapter the standard EN requires to include the values of w in the test report: w: The dimension of the line tangent to the EUT formed by Ө 3dB at the measurement distance d. Equation (10) shall be used to calculate w for each actual antenna and measurement distance used. The values of w hall be included in the test report. This calculation may be based on the manufacturer-provided receive-antenna beamwidth specifications: w=2 d tan (0,5 Ө 3dB ) Frequency 3115 Horn GHz Ө 3dB d=3m ( ) w (M) The values of w. are greater than chapter of Table 2, the minimum dimension of w. (Wmin) requirements.

21 Page 20 of Measurement Results PASSED. (All the emissions not reported below are too low against the prescribed limits.) For 30MHz~1GHz The details of test modes and reference test data are as follows: Test Date: Apr. 26, 2011 Temperature: 22.4 Humidity: 47% Reference Test Data No. Item Test Condition Horizontal Vertical 1 Half Load # 3 # 4 2 Full Load # 1 # 2 NOTE 1 - means the worst test mode. NOTE 2-0 was the table front facing the antenna. Degree is calculated from 0 clockwise facing the antenna. NOTE 3 - The worst emission at horizontal polarization was detected at MHz with emission level of dbμv/m (limit is dbμv/m), when the antenna was 2.8m height and the turntable was at 241. The worst emission at vertical polarization was detected at MHz with emission level of dbμv/m (limit is dbμv/m), when the antenna was 1.0 m height and the turntable was at 128. NOTE 4 - Because EN limit is more rigorous, so when the test results satisfies EN requests, regards as simultaneously meets EN requirements, therefore does not need to retest.

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26 Page 25 of 71 5 POWER HARMONICS AND FLICKER MEASUREMENT 5.1 Test Equipment Item Type Manufacturer Model No. Last Cal. Next Cal. Compliance Test California 1. Proflt2145A System Instrument 5.2 Block Diagram of Test Setup Compliance Test System DC Power Supply EUT R-Load : POWER LINE : SIGNAL LINE 5.3 Test Standard EN :2005 and EN : Test Procedure The measuring process is according to EN :2007 and EN :2000 and laboratory internal procedure TKC Test Results PASSED. (Complied with Stage 2 limit). EUT with the following test modes was measured during this section testing and all the test results are listed in next page. Item Test Condition 1 Full Load

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32 Page 31 of 71 6 ELECTROSTATIC DISCHARGE IMMUNITY TEST 6.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. ESD SIMULATOR NoiseKen ESS-2000 ESS07X Block Diagram of Test Setup AC POWER SOURCE ESD Simulator EUT DC Power Supply : POWER LINE : AIR /CONTACT DISCHARGE 6.3 Test Standard EN & EN IEC :2008, Test Level : Contact Discharge(level 2): ±4kV, Air Discharge(level 3): ±8kV 6.4 Severity Levels and Performance Criterion Severity level Level Test Voltage Test Voltage Contact Discharge (kv) Air Discharge (kv) X Special Special Performance criterion:b

33 Page 32 of Test Procedure The measuring process is according to EN & EN (IEC :2008) and laboratory internal procedure TKC Air Discharge: This test is done on a non-conductive surface. The round discharge tip of the discharge electrode shall be approached as fast as possible to touch the EUT. After each discharge, the ESD generator discharge electrode shall be removed from the EUT. The generator is then ret rigged for a new single discharge and repeated 10 discharges each at positive and negative polarity for each reselected test point. This procedure shall be repeated until all the air discharge completed Contact Discharge: All the procedure shall be same as Except that the tip of the discharge electrode shall touch the EUT conductive surfaces & repeated 10 discharges each at positive and negative polarity for each test point before the discharge switch is operated Indirect discharge for horizontal coupling plane: At least 10 discharges each at positive and negative polarity shall be applied to the horizontal coupling plane, at points on each side of the EUT. The ESD generator positions vertically at a distance of 0.1m from the EUT and with the discharge electrode touching the coupling plane Indirect discharge for vertical coupling plane: At least 10 discharges each at positive and negative polarity shall be applied to the center of one vertical edge of the coupling plane. The coupling plane, of dimensions 0.5m 0.5m, is placed parallel to, and positioned at a distance of 0.1m from the EUT. Discharges shall be applied to the coupling plane, with this plane in sufficient different positions that the four faces of the EUT are completely illuminated For above tests, the voltage was increased from the minimum to the selected test level. 6.6 Test Results PASSED. (Complied with Criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

34 Page 33 of 71 Electrostatic Discharge Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Atmosphere Pressure 101kPa Test Mode 10% Load Working Condition Refer to section 2.2 Results PASS Item Amount of Performance Discharge Voltage Discharges Criterion Contact Discharge kV, +4kV A - 2kV, - 4kV A Air Discharge kV, +4kV, +8kV A - 2kV, - 4kV, - 8kV A Indirect Discharge +2kV, +4kV A 20 (HCP) - 2kV, - 4kV A Indirect Discharge +2kV, +4kV A 20 (VCP Front) - 2kV, - 4kV A Indirect Discharge +2kV, +4kV A 20 (VCP Left) - 2kV, - 4kV A Indirect Discharge +2kV, +4kV A 20 (VCP Back) - 2kV, - 4kV A Indirect Discharge +2kV, +4kV A 20 (VCP Right) -2kV,-4kV A Test Points 1. Screw 16 Contact Discharge 2. Metal 6 Contact Discharge 3. Metal 4 Air Discharge 4. Port 6 Air Discharge 5. Panel Air Discharge 6. Light 3 Air Discharge 7. Button Air Discharge Note: EN & EN Engineer : Lion

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38 Page 37 of 71 7 RF FIELD STRENGTH IMMUNITY TEST 7.1 Test Equipment Frequency Range: MHz Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Signal Generator Agilent 8648C 3847M Power Amplifier AR KAW NCR NCR 3. Power Sensor Agilent 8481D MY Power Meter Agilent E4419B MY Log-Periodic Antenna AR AT NCR NCR 6. Direction Coupler AR DC6180A Frequency Range: GHz Item Equipment Manufacturer Model No. Serial No. Last Cal. Cal. Interval 1. Signal Generator Agilent 8648C 3847M Power Sensor Agilent 8481D MY Dual Channel EPM Series Power Meter Agilent E4418B MY Attenuator (30dB) Agilent 11708A Direction Coupler AR DC7144A Horn Antenna AR AT4002A NCR NCR 7. LINEAR POWER MILMEGA AS AMPLIFIER NCR NCR NCR: Non-Calibration Requirement. 7.2 Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. AC POWER SOURCE DC Power Supply EUT : POWER LINE

39 Page 38 of R/S Test Setup Anechoic Chamber 1 Meter 3(1) Meters EUT 0.8 Meter Control Room Direction Coupler Power Sensor Power Monitor Power Amp. Signal Generator Personal Computer 7.3 Test Standard EN & EN IEC :2008; Field strength: 1/3/10V/m 7.4 Severity Levels and Performance Criterion Severity level Level Field Strength V/m X Special Performance criterion:a

40 Page 39 of Test Procedure The measuring process is according to EN & EN (IEC :2008) and laboratory internal procedure TKC The field sensor is placed on the EUT table (0.8 meter above the ground) which is 3 meters for frequency range 80MHz-1GHz and 1meter for frequency range 1.4GHz-2.7GHz away from the transmitting antenna. Through the signal generator, power amplifier and transmitting antenna to produce a uniformity field strength (3V/m measured by field sensor) around the EUT table from frequency range 80MHz-1000MHz,1.4GHz-2.7GHz and records the signal generator s output level at the same time for whole measured frequency range. Then, put EUT and its simulators on the EUT turn table and keep them 3 meters away from the transmitting antenna which is mounted on an antenna tower and fixes at 1 meter height above the ground. Using the recorded signal generator s output level to measure the EUT from frequency range 80MHz-1000MHz,1.4GHz-2.7GHz and both horizontal & vertical polarization of antenna must be set and measured. Each of the four sides of EUT must be faced this transmitting antenna and measures individually. In this report, chose the most sensible side to measure that is right side to face transmitting antenna. A CCD camera was put inside the chamber and through its display to monitor the EUT operational situation to judge the EUT performance criterion during measurement. All the scanning conditions are as follows: Condition of Test Remarks Fielded Strength 1/3/10 V/m 2. Amplitude Modulated 1kHz, 80%AM 3. Scanning Frequency MHz 4. Step Size 1% increments 5. The Rate of Sweep decade/s 6. Dwell Time 3 sec. 7.6 Test Results PASSED. (Complied with Criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

41 Page 40 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 80~ H 3 A 80~ H 3 A 80~ H 3 A 80~ H 3 A 80~ V 3 A 80~ V 3 A 80~ V 3 A 80~ V 3 A Note: EN Engineer : Joecy

42 Page 41 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 1400~ H 3 A 1400~ H 3 A 1400~ H 3 A 1400~ H 3 A 1400~ V 3 A 1400~ V 3 A 1400~ V 3 A 1400~ V 3 A Note: EN Engineer : Joecy

43 Page 42 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 2000~ H 1 A 2000~ H 1 A 2000~ H 1 A 2000~ H 1 A 2000~ V 1 A 2000~ V 1 A 2000~ V 1 A 2000~ V 1 A Note: EN Engineer : Joecy

44 Page 43 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 80~ H 10 A 80~ H 10 A 80~ H 10 A 80~ H 10 A 80~ V 10 A 80~ V 10 A 80~ V 10 A 80~ V 10 A Note: EN Engineer : Joecy

45 Page 44 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 1400~ H 3 A 1400~ H 3 A 1400~ H 3 A 1400~ H 3 A 1400~ V 3 A 1400~ V 3 A 1400~ V 3 A 1400~ V 3 A Note: EN Engineer : Joecy

46 Page 45 of 71 RF Field Strength Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range E.U.T. Position Ant. Polarity Field Strength Performance (MHz) ( Angle ) (Hor. or Ver.) (V/m) Criterion Remark 2000~ H 1 A 2000~ H 1 A 2000~ H 1 A 2000~ H 1 A 2000~ V 1 A 2000~ V 1 A 2000~ V 1 A 2000~ V 1 A Note: EN Engineer : Joecy

47 Page 46 of 71 8 ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST 8.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. ECAT System 1. KEYTEK E (EFT Module) 8.2 Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. Same as section EFT Test Setup Signal Line AC Line (L=50cm) 10cm insulating support EUT EFT Clamp ECAT system To AC Power Supply Network Grounding Plate TABLE Grounding Wire Ground Plane Remark: Combination wave generator and decoupling networks are included in test. 8.3 Test Standard EN & EN IEC :2004+Corr.1:2006+Corr.2:2007, Severity Level: 2 & 3

48 Page 47 of Severity Levels and Performance Criterion Severity levels Open circuit output test voltage and repetition rate of the impulses Level On I/O (input/output) signal, data On power port, PE and control ports Voltage peak Repetition rate Voltage peak Repetition rate kv khz kv khz or or or or or or or or 100 X a Special Special Special Special Note 1 : Use of 5kHz repetition rates is traditional; however, 100kHz is closer to reality. Product committees should determine which frequencies are relevant for specific products or product types. Note 2 : With some products, there may be no clear distinction between power ports and I/O ports, in which case it is up to product committees to make this determination for test purposes. a X is an open level. The level has to be specified in the dedicated equipment specification Performance criterion:b 8.5 Test Procedure The measuring process is according to EN & EN (IEC :2004+Corr.1:2006+Corr.2:2007) and laboratory internal procedure TKC The EUT and its simulators shall be placed 0.1m high above the ground reference plane which was a min. 1m*1m metallic sheet with 0.65mm minimum thickness. This reference ground plane shall project beyond the EUT by at least 0.1m on all sides and the minimum distance between EUT and all other conductive structure, except the ground plane beneath the EUT, shall be more than 0.5m For AC Mains port The EUT was connected to the power mains by using a coupling device which couples the EFT interference signal to AC power lines, and the length of the power line between the coupling device and the EUT shall be 0.5m or less. Both polarities of the test voltage should be applied during compliance test and the duration of the test can t less than 1min For telecommunication port The I/O interface cable of the EUT is connected to its simulator through a capacitive coupling clamp that is 0.5 meter long. The capacitive coupling clamp is impressed with burst noise for 1min and indirectly couples burst to I/O interface cable. 8.6 Test Results PASSED. (Complied with Criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

49 Page 48 of 71 Electrical Fast Transient / Burst Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition 10% Load Refer to section 2.2 Results PASS Inject Place: Power Supply Line Inject Place: I/O Cable Inject Inject Inject Performance Inject Voltage Inject Inject Performance Voltage (kv) Line Time(s) Method Criterion Line (kv) Time(s) Method Criterion L1 +0.5, Direct A I/O +0.25, Clamp N/A L1-0.5, Direct A I/O +0.25, Clamp N/A L2 +0.5, Direct A L2-0.5, Direct A PE +0.5, Direct A PE -0.5, Direct A L1,L2 +0.5, Direct A L1,L2-0.5, Direct A L1,PE +0.5, Direct A L1,PE -0.5, Direct A L2,PE +0.5, Direct A L2,PE -0.5, Direct A L1,L2,PE +0.5, Direct A L1,L2,PE -0.5, Direct A Note: EN N/A means the EUT without I/O cable. Engineer: Lion

50 Page 49 of 71 Electrical Fast Transient / Burst Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition 10% Load Refer to section 2.2 Results PASS Inject Place: Power Supply Line Inject Place: I/O Cable Inject Inject Inject Performance Inject Voltage Inject Inject Performance Voltage (kv) Line Time(s) Method Criterion Line (kv) Time(s) Method Criterion L1 +0.5,+1.0, Direct A I/O +0.5, Clamp N/A L1-0.5,-1.0, Direct A I/O -0.5, Clamp N/A L2 +0.5,+1.0, Direct A L2-0.5,-1.0, Direct A PE +0.5,+1.0, Direct A PE -0.5,-1.0, Direct A L1,L2 +0.5,+1.0, Direct A L1,L2-0.5,-1.0, Direct A L1,PE +0.5,+1.0, Direct A L1,PE -0.5,-1.0, Direct A L2,PE +0.5,+1.0, Direct A L2,PE -0.5,-1.0, Direct A L1,L2,P +0.5,+1.0, Direct A L1,L2,P -0.5,-1.0, Direct A Note: EN N/A means the EUT without I/O cable. Engineer: Lion

51 Page 50 of 71 9 SURGE IMMUNITY TEST 9.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. ECAT System KEYTEK E501B Coupling Thermo CM-I/OCD& 2. Decoupling Electron Corp. HS Network 3. Coupling Decoupling Network Thermo Electron Corp. 9.2 Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. Same as section Test Setup CM-TELCD EUT AC Line Coupler/ Decoupler Test Generator 80cm TABLE To AC Power Supply Network Ground Plane Remark: Test generator includes control center surge combination and coupler. 9.3 Test Standard EN & EN IEC :2005, Test Level:line to earth - ± 2kV, line to line - ± 1kV, 1.2/50 (8/20) Tr/Thµs.

52 Page 51 of Severity Levels and Performance Criterion Test Levels Level Open-circuit test Voltage +/- 10%, kv X Special Performance Criterion: B 9.5 Test Procedure The measuring process is according to EN & EN (IEC :2005) and laboratory internal procedure TKC Set up the EUT and test generator as shown on section & For line to line coupling mode, provided a 0.5/1kV 1.2/50 μs voltage surge (at open-circuit condition) and 8/20 μs current surge to EUT selected points At least 5 positive and 5 negative (polarity) tests with a Maximum 1/min repetition rate were conducted during test Different phase angles were done individually Repeat procedure to except the open-circuit test voltages 0.5kV/1kV/2kV for line to earth coupling mode test Record the EUT Operating situation during compliance test and decide the EUT immunity criterion for above each test. 9.6 Test Results PASSED. (Complied with Criterion A). EUT was tested with the following test mode and all the test results are listed in next page.

53 Page 52 of 71 Surge Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition Location L-N L-PE N-PE L, N-PE 10% Load Refer to section 2.2 Results PASS Input and Output AC Power Port Phase No of Performance Polarity Pulse Voltage Angle Pulse Criterion kV, 1.0kV A kV, 1.0kV A kV, 1.0kV A kV,1.0kV A kV,1.0kV A kV, 1.0kV A kV, 1.0kV A kV, 1.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A kV, 1.0kV, 2.0kV A Note: EN & EN kV, 1.0kV, 2.0kV A Engineer: Lion

54 Page 53 of CONDUCTED DISTURBANCE IMMUNITY TEST 10.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Signal Generator Agilent 8648C 3847M Power Amplifier AR KAW NCR NCR 3. Attenuator Agilent 8491B MY CDN-M2 FCC FCC-801-M2-25A CDN-M3 FCC FCC-801-M3-25A Decoupling F-203I-23MM-DC FCC Network N 196 NCR NCR 7. EM Injection Clamp FCC F-203I-03MM NCR: Non-Calibration Requirement Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. Same as Section Common Mode Test Setup 0.1m EUT CDN AC Source Ground Reference support Signal Generator Power Amplifier Attenuator Personal Computer Control System 10.3 Test Standard EN & EN IEC :2008, Severity Level: MHz, 3/10V, 80%AM (1kHz)

55 Page 54 of Severity Levels and Performance Criterion Severity levels Frequency range 0.15MHz - 80MHz Voltage level (e.m.f.) Level U 0 db(µv) U 0 V X a Special a X is an open level Performance criterion:a 10.5 Test Procedure The measuring process is according to EN & EN (IEC :2008) and laboratory internal procedure TKC Set up the EUT, CDN and test generators as shown on section The EUT and supporting equipment were placed on an insulating support 0.1m high above a ground reference plane. CDN (coupling and decoupling device) was placed on the ground plane making contact with it at about m from EUT. Cables between CDN and EUT were as short as possible The disturbance signal described below was injected to EUT through CDN The EUT operates within its operational mode(s) under intended climatic conditions after power on The frequency range was swept from 150 khz to 80MHz using 3V/10V signal level, and with the disturbance signal 80% amplitude modulated with a 1 khz sine wave The rate of sweep shall not exceed 1.5*10^3decades/s. Where the frequency was swept incrementally, the step size shall not exceed 1% of the start and thereafter 1% of the preceding frequency value Recording the EUT Operating situation during compliance testing and decide the EUT immunity criterion Test Results PASSED. (Complied with Criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

56 Page 55 of 71 Inject Currents Immunity Test Results Date of Applicant Suzhou Omnik New Energy Co., Ltd Test EUT Solar Inverter I/P Volt. AC: 230V ; 50Hz Model No. Omniksol-4K-TL Temp Humidity 62% Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range Performance Inject Position Strength (MHz) Criterion Remark 0.15MHz~80MHz Main 3V A Note: EN Engineer : Joecy Inject Currents Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230V ; 50Hz Model No. Omniksol-4K-TL Temp Test Mode 10% Load Working Refer to section 2.2 Results PASS Condition Frequency Range Performance Inject Position Strength (MHz) Criterion Remark 0.15MHz~80MHz Main 10V A Note: EN Engineer : Joecy

57 Page 56 of POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST 11.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Plus Immunity Test System KEYTEK EMC pro o Magnetic Field F / FCC Immunity Loop 9/10-L-1M 6008 NCR NCR NCR: Non-Calibration Requirement Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. Same as section Test Setup EUT Induction Coil Test Generator Non-Conductive Table 11.3 Test Standard EN & EN IEC :2009, Test Level: 50Hz, 3A/m & 30A/m 11.4 Severity Levels and Performance Criterion Severity level Level Magnetic Field Strength Continuous Field A/m X Performance criterion:a Special

58 Page 57 of Test Procedure The measuring process is according to EN & EN (IEC :2009) and laboratory internal procedure TKC The EUT was placed on 1m high table that above the ground reference plane which is the min. size 1m x 1m and 0.65mm thickness metallic. And subjected to the test magnetic field by using the induction coil of standard dimensions (1m x 1m). The induction coil rotated by 90 degrees in order to expose the EUT to the test field with different orientations. All cables of EUT exposed to magnetic field for 1m of their length Test Results PASSED. (Complied with Criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

59 Power Frequency Magnetic Field Immunity Test Results Page 58 of 71 Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition 10% Load Refer to section 2.2 Results PASS Power Frequency Magnetic Field Testing Duration Coil Orientation Performance Criterion Remark 50/60Hz, 3A/m 50/60Hz, 3A/m 1 Min. X-axis A A 50/60Hz, 3A/m 50/60Hz, 3A/m 50/60Hz, 3A/m 50/60Hz, 3A/m Note: EN Min. Y-axis 1 Min. Z-axis A A A A Engineer: Lion

60 Power Frequency Magnetic Field Immunity Test Results Page 59 of 71 Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition 10% Load Refer to section 2.2 Results PASS Power Frequency Magnetic Field Testing Duration Coil Orientation Performance Criterion Remark 50/60Hz, 30A/m 50/60Hz, 30A/m 1 Min. X-axis A A 50/60Hz, 30A/m 50/60Hz, 30A/m 50/60Hz, 30A/m 50/60Hz, 30A/m Note: EN Min. Y-axis 1 Min. Z-axis A A A A Engineer: Lion

61 Page 60 of VOLTAGE DIPS AND INTERRUPTIONS IMMUNITY TEST 12.1 Test Equipment Item Type Manufacturer Model No. Serial No. Last Cal. Next Cal. 1. Programmable AC Source Chroma Block Diagram of Test Setup Block Diagram of connection between EUT and simulators. Same as section Test Setup EUT Chroma RLoad 12.3 Test Standard EN & EN IEC :2004, Severity Level:Voltage dips : Voltage interruptions >95% reduction: 250period; Dips 30% reduction: 25period; >95% reduction: 0.5period 12.4 Severity Levels and Performance Criterion Preferred severity levels and durations for voltage dips Class a Class 1 Test level and durations for voltage dips (t s ) (50Hz/60Hz) Case-by-case according to the equipment requirements Class 2 0% during ½ cycle 0% during 1 cycle 70% during 25/30 c cycles Class 3 0% during ½ cycle 0% during 1 cycle 40% during 10/12 c cycles 70% during 25/30 c cycles 80% during 250/300 c cycles Class X b X X X X X a Classes as per IEC b To be defined by product committee. For equipment connected directly or indirectly to the public network, the levels must not be less severe than Class 2. c 25/30 cycles means 25 cycles for 50Hz test and 30 cycles for 60Hz test.

62 Page 61 of Preferred severity levels and durations for short interruptions Class a Class 1 Class 2 Class 3 Test level and durations for short interruptions (t s ) (50Hz/60Hz) Case-by-case according to the equipment requirements 0% during 250/300 c cycles 80% during 250/300 c cycles Class X b X a Classes as per IEC b To be defined by product committee. For equipment connected directly or indirectly to the public network, the levels must not be less severe than Class 2. c 250/300 cycles means 250 cycles for 50Hz test and 300 cycles for 60Hz test Performance criterion: 1) Voltage dips >95% reduction performance criterion B. 2) Voltage dips 30% reduction performance criterion C. 3) Voltage interruption >95% reduction performance criterion C Test Procedure The measuring process is according to EN & EN (IEC :2004) and laboratory internal procedure TKC Set up the EUT and test generator as shown on section The interruption was introduced at selected phase angles with specified duration. There was a 10s minimum interval between each test event After each test a full functional check was performed before the next test Repeat procedures & for voltage dips, only the test level and duration was changed Record any degradation of performance Test Results PASSED. (Voltage interruptions complied with criterion C, Voltage dips Complied with criterion A) EUT was tested with the following test mode and all the test results are listed in next page.

63 Page 62 of 71 Voltage Dips and Interruptions Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition Type of Test Voltage Interruption Voltage Dips 10% Load Refer to section 2.2 Results PASS Test Voltage Phase Angle % Reduction Period Performance Criterion B B B B B B B B 0 70% 25 A 45 70% 25 A 90 70% 25 A % 25 A % 25 A % 25 A % 25 A % 25 A A A A A A A A A A A A A A A A A Note: (1) The performance criterion B means the power of the EUT turned off, and it can recover with by itself during test interval. (2) EN Engineer :Lion

64 Page 63 of 71 Voltage Dips and Interruptions Immunity Test Results Applicant Suzhou Omnik New Energy Co., Ltd Date of Test EUT Solar Inverter I/P Volt. AC: 230 V ; 50 Hz Model No. Omniksol-4K-TL Temp Humidity 46% Test Mode Working Condition Type of Test Voltage Interruption Voltage Dips 10% Load Refer to section 2.2 Results PASS Test Voltage Phase Angle % Reduction Period Performance Criterion B B B B B B B B 0 70% 25 A 45 70% 25 A 90 70% 25 A % 25 A % 25 A % 25 A % 25 A % 25 A 0 40% 10 A 45 40% 10 A 90 40% 10 A % 10 A % 10 A % 10 A % 10 A % 10 A A A A A A A A A Note: (1) The performance criterion B means the power of the EUT is turned off, and it can recover with by itself during test interval. (2) EN Engineer : Lion

65 Page 64 of PHOTOGRAPHS 13.1 Photos of Conducted Disturbance Measurement 13.2 Photos of Radiated Disturbance Measurement at 10m Semi-Anechoic Chamber Front View of Radiated Disturbance Measurement (30MHz ~1GHz)

66 Page 65 of 71 Test Mode: Full Load Setup with Maximum Detected Emission at Horizontal Polarization

67 Page 66 of 71 Setup with Maximum Detected Emission at Vertical Polarization 13.3 Photos of Electrostatic Discharge Immunity Test Contact & Air Discharge

68 Page 67 of 71 VCP & HCP 13.4 Photos of RF Field Strength Immunity Test Front View of R/S Test (3/10V, 80MHz~1GHz)

69 Page 68 of 71 Front View of R/S Test (3/10V, 80MHz~1GHz) Front View of R/S Test (Above 1GHz)

70 Page 69 of 71 Back View of R/S Test 13.5 Photos of Electrical Fast Transient Immunity Test

71 Page 70 of Photos of Surge Immunity Test 13.7 Photos of Conducted Disturbance Immunity Test

72 Page 71 of Photos of Power Frequency Magnetic Field Immunity Test 13.9 Photos of Voltage Dips and Interruptions Immunity Test

73 APPENDIX APPENDIX Photos of EUT

74 APPENDIX Page 1 of 7 Figure 1 General Appearance (Front side View) Figure 2 General Appearance (Back side View)

75 APPENDIX Page 2 of 7 Figure 3 General Appearance (I/O Ports) Figure 4 General Appearance (Cover Remove)

76 APPENDIX Page 3 of 7 Figure 5 Internal View Figure 6 Heat Sink

77 APPENDIX Page 4 of 7 Figure 7 LCD Screen Board (Front View) Figure 8 LCD Screen Board (Back View)

78 APPENDIX Page 5 of 7 Figure 9 Control Board (Front View) Figure 10 Control Board (Back View)

79 APPENDIX Page 6 of 7 Figure 11 Crystal Oscillator Figure 12 Internal View (PCB / Component Side)

80 APPENDIX Page 7 of 7 Figure 13 Internal View (PCB / Solar Side) Figure 14 Cover