leds in different colors

yellow glass metal green light light-emitting diodes leds colors grey component electronic green yellow red diy lamp blue anode automotive aviation-lighting cathode dc digital dimming diode electronic-component electronics electrons emits-light energy engineering fairy-lights flashing hyaloid infrared infrared-led installation lab led led-lamp light-emitting-diode low-energy-consumption luminescence optical communication optoelectronic photodiode physical-science science semiconductor silicon source technical-service technician technology transducer transparent ultraviolet volt white