semiconductor lamps

light sources semiconductor material gray led lamps anode aviation lighting background blue cathode component components dc dimming diode diodes diy electronic-component electronics electrons emits-light emitting energy engineering flashing green group hyaloid infrared infrared-led lab lamp led-equipments led-lamp leds light-emitting-diode low-energy-consumption luminescence optical-communication optoelectronic parts photodiode physical-science red semiconductor silicon technical-work transducer transparent ultraviolet yellow