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An electric lamp, used in association with a control, which by means of position or color indicates the functioning of the control; an indicator light or a control light. Pilot lights and indicator lights are indicating lights for machines or instruments. Most indicators favor the use of LEDs or incandescent lamps.
Pilot Lights has a variant from 12 V AC/DC to 240 V AC & 22O V DC. Three Super Bright LED which collectively give Lux from 450 to 2000. The design of Lense & Reflector is done in such a way that the emitting light will have a wider visibility. All component in Pilot Lights are PCB Mounted & tight fit in terminals made up of Phosphor Bronze whose spring action provide a strong & tougher grip to PCB. Back cover is provided in the same color of the pilot light. This will ease the task of a person while fixing wire at the backside of Panel.
Incandescent lights emit light through a thin wire (filament) which becomes hot when electricity flows through it. It can operate on either AC or DC circuits; however, these devices are relatively inefficient, generate heat, and have shorter operating life spans than LED pilot lights.
LED lights are semiconductor light sources that require DC to operate. If a DC circuit is not available, an LED driver can be used to supply the appropriate DC voltage and current. They have the advantage of smaller size, longer lifetimes, and lower energy requirements than incandescent or fluorescent lights. Some LED lights can change color with the polarity of the current.
Fluorescent lights utilize fluorescent bulbs which house electrodes at both ends of the tube and argon and mercury vapor throughout. A phosphor coating on the inside of the tube emits light through emission of ultraviolet light from excitation and stabilization of mercury atoms. Fluorescent bulbs tend to be more energy efficient and longer lasting than incandescent bulbs, but are less commonly used as indicators.
Halogen lights utilize a tungsten filament, inert gas, and a small amount of a halogen to emit light. This combination allows for higher temperature filaments which can produce more light given the same energy (higher color temperature). This favors their use as daytime indicators and warning lights which require brighter light.
Pilot and indicator lights are used as malfunction lights in automatic equipment, voice mail lights for telephones, condition panels, and dashboard lights for vehicles. They can also be built into switches.