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LED: Light Emitting Diode. / 2013-07-24

 Terms to Help You Get Started

• LED: Light Emitting Diode.
SSL: Solid State Lighting, a general term for semiconductors that convert electricity into light.
Semiconductors: Solid materials that possess electrical conductivity.
Diode: A simple semiconductor device.
CFL: Compact Fluorescent Lamp (lamp is the lighting industry's term for bulb).
CRI: Color Rendering Index, a measure of how a standard series of colors appear under a light source, compared to a reference light source (daylight or incandescent light); CRI is measured on a scale of 0 to 100, with 100 being identical to the reference light source.
CCT: Correlated Color Temperature, a measure of the color appearance of a light source; CCT is measured in degrees Kelvin (K), the absolute temperature scale; white light products commonly range from “warm white” (2700K) to “cool white” (5000K).
RGB: Red-Green-Blue, the three primary colors of light.
White light: Not an actual “color,” but rather a combination of all wavelengths in the visible spectrum of light.