E T W GLOSSARY OF LIGHTING TERMS

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1 GLOSSARY OF LIGHTING TERMS Ballast A device used to start and operate discharge lamps. It may include a dimmer. Beam A cone of light emitted by a luminaire. Beam Angle If you re into reading light-performance data, beam angle is the point at which the Intensity of a source drops to 50% of maximum (center reading) measured in degrees of the full angle. Simply: how wide? Colour Rendering Index Colour rendering relates to the way objects appear under a given light source. The measure is called the colour rendering index, or CRI. A low CRI indicates than objects may appear unnatural under the source, while a light with a high CRI rating will allow an object s colours to appear more natural. Binning () Binning is a way of measuring the difference between s so that they are delivered to minimise difference from one to the next. Macadam is often a unit used for measurement which is an observation test observed by the human eye to distinguish the colour differences. Colour Temperature, Kelvin Scale, K Briefly: how red, blue and green the white light is. Films are white balanced by choosing the correct colour-temperature source (daylight, about 5,600K; tungsten, usually 3,200K) or by filtering. Constant current In electronics, a constant current system is a system that can vary the voltage across an electronic circuit to maintain a constant electric current. Constant voltage Constant voltage refers to the ability to fluctuate output current to maintain a set voltage. Constant voltage can be used for applications where the workpieces do not have flat surfaces, e.g. crossed wires, and where the resistance varies significantly, and for extremely short welds (less than 1 millisecond). Dichroic A vapor-deposited coating (usually on glass or metal) that reflects unwanted portions of the light spectrum. A filter with such a coating, typically one that converts tungsten light to match daylight sources or films. Diffusion A translucent material placed in front of a light to soften highlights and shadows, reduce contrast and increase beam angle.

2 GLOSSARY OF LIGHTING TERMS Driver An driver is a device that manages power and controls the current flow for an lighting product. lighting doesn t require high voltage so the driver converts the mainline current down the voltage required by the light source. Glare Light reflected toward the camera from shiny or even relatively matte surfaces. In moderation, it is one of the most useful ways to add life to drab subjects. If excessive, tame it by: moving the glaring object, the light, or camera angle; using softer light, a polarizing camera filter (not on bare metal), or dulling-type spray (not on bald heads). GU10 lamp Usually in 240V GU10s are a high intensity light source emitting a bright sparkling natural light far superior to that of an incandescent bulb. The GU10 fits its lampholder with a twist and lock mechanism. Halogen Denoting lamps and radiant heat sources using a filament surrounded by the vapour of iodine or another halogen. IES file An IES file is a text file that describes the intensity of a light source at points on a spherical grid. It provides more photorealistic lighting effects in rendered images than other types of light distribution. Incandescent Lamp or Light A lamp that produces white light when electric current excites the filament. See: Tungsten Filament. LDT file LDT is a light fixture, or luminaire, data file used by DIALux, a professional light planning software for indoor and outdoor lighting. It stores lighting parameters for a luminaire, which include the number of lamps, the light intensity, the light distribution curve, and the size of the luminaire. Lumen A unit of measurement of Incident light. Lumens, like lux, flux, candela, foot candles, foot lamberts, and watt/seconds, were created by scientists and engineers to confuse artists. Light emitting diode: semiconductor that emits light when a conducting current is used. Lux A unit of measure of Incident Light. The video and European version of foot candles. Conversion formula: fc x 10.8 = Lux.

3 GLOSSARY OF LIGHTING TERMS MR16 lamp The reflectors of some MR lamps have a smooth inside surface instead of facets, but they are still called MR lamps by convention. The light source of MR lamps is a single-ended quartz halogen filament capsule. Transformer An apparatus for reducing or increasing the voltage of an alternating current. Usually used for converting 240V down to 12V in MR16 lamps. Tungsten Filament A lamp coil that emits light (and heat) when electricity flows through it. See: Incandescent Lamp. Watt (w) A measurement of power or the rate at which electrons move along a wire.

4 SERIES WIRING DRIVER NOTIFICATIONS 1. Place driver in suitable location 2. Maintain the correct polarity - failure to do so will damage the beyond repair 3. Observe forward voltage when calculating the total number of s per driver

5 PARALLEL WIRING DRIVER NOTIFICATIONS 1. Place driver in suitable location 2. Maintain the correct polarity - failure to do so will damage the beyond repair

6 WIRING MULTIPLE 0-10V FEEDS OUTPUT or GROUP 230V MAINS INPUT LIVE NEUTRAL DRIVER 0-10V OUTPUT 0-10V DIMMER OUTPUT or GROUP LIVE NEUTRAL DRIVER 0-10V OUTPUT OUTPUT or GROUP LIVE NEUTRAL DRIVER 0-10V OUTPUT NOTIFICATIONS Do not connect to mains supply. Incorrect wiring will damage the. Only install with an approved driver. Wire 1 fitting per driver and maintain correct polarity. Ensure power is off when wiring. Hot wiring will destroy the.

7 EXTERNAL SERIES WIRING TO IP RATED BOX IP68 RATED CABLE WIRED IN SERIES CONSTANT CURRENT DRIVER IP RATED CASING

8 SPECIFYING A CURRENT RATED CIRCUIT TOTAL CURRENT RATING CONSTANT CURRENT DRIVER CIRCUIT TOTAL CURRENT RATING AND FORWARD VOLTAGE 9.6vDC 3.2vDC 3.2vDC 3.2vDC 48vDC CONSTANT CURRENT DRIVER

9 DMX RGBW CONSTANT CURRENT LIGHTING DMX RGBW CONSTANT CURRENT LIGHTING PIN NO. WHITE - 8 BLUE - 7 GREEN - 6 RED - 5 WHITE + 4 BLUE + 3 GREEN + 2 RED + 1 CABLE WIRING BROWN BROWN/WHITE GREEN BLUE/WHITE BLUE GREEN/WHITE ORANGE ORANGE/WHITE CAT 5e CABLE DRIVER CABLE WIRING PIN NO. BROWN 8 WHITE - BROWN/WHITE 7 BLUE - GREEN 6 GREEN - BLUE/WHITE 5 RED - BLUE 4 WHITE + GREEN/WHITE 3 BLUE + ORANGE 2 GREEN + ORANGE/WHITE 1 RED +

10 DMX RGBW CONSTANT VOLTAGE LIGHTING DMX RGBW CONSTANT VOLTAGE LIGHTING DMX 512 DRIVER INPUT BROWN PIN NO. 8 GROUND ORANGE 2 COLD - ORANGE/WHITE 1 HOT + CAT 5e CABLE PIN NO. GROUND COLD - 2 HOT + 1 DMX 512 CONTROLLER INPUT BROWN ORANGE ORANGE/WHITE