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Lights & lighting

Any device used for illumination, either for practical use or deliberate aesthetic effect.

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Lights & lighting > Lighting products

lamp types

Lights & lighting; Lighting products

Filament lamps: Incandescent, Halogen, Halogen-IR. Discharge Lamps: Fluorescent, HID (High Intensity Discharge). HID Lamps: Mercury, HPS (High Pressure Sodium), MH (Metal Halide) ...

lamp watts

Lights & lighting; Lighting products

Input power used to operate lamps.

lamp width

Lights & lighting; Lighting products

Referenced by IEC as Dimension A.

lens

Lights & lighting; Lighting products

A transparent or semi-transparent element which controls the distribution of light by redirecting individual rays. Luminaires often have lenses in addition to reflectors.

life

Lights & lighting; Lighting products

(See RATED LAMP LIFE).

light center length (L.C.L.)

Lights & lighting; Lighting products

The distance between the center of the filament, or arc tube, and a reference plane - usually the bottom of the lamp base.

light emitting diode (LED)

Lights & lighting; Lighting products

A solid that directly converts electrical impulses into light. Some LED's today incorporate fluorescent materials to change the color characteristics of the emitted light.