indicator red light

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• Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …   Wikipedia

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• light-emitting diode — /luyt i mit ing/. See LED. [1965 70] * * * ▪ electronics       in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many electronic devices as indicator lamps …   Universalium

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• Idiot light — is a mildly derogatory term that refers to a simplistic method of displaying information about a system (e.g. an engine, or a piece of factory equipment). Usually found in display panels, such as an automobile dashboard, idiot lights consist of… …   Wikipedia

• landing gear position indicator — A system available on all aircraft with retractable landing gear to indicate the position of the landing gear. The most common indication is a set of three green lights to indicate all three wheels are down and locked and three red lights to show …   Aviation dictionary