Electronic, a sign which contains electrical fixtures or connections.
Time and Temperature Sign – electronic signs utilizing either incandescent lamps or L.E.D.s. These signs alternate between showing the always important time and temperature.
Electronic Message Center – a sign that utilizes computer-generated changeable messages. These signs include displays that most commonly use incandescent lamps or L.E.D.s for illumination.
L.E.D. – Light Emitting Diode – a very small type of low power consuming lamp most often used in Electronic Message Center signs, but now is gaining acceptance as a channel letter lighting source. L.E.D.s are combined into groups and arranged in a larger device know as a pixel, which in turn is used to provide the final matrix designation of an Electronic Message Center.
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