incidentally you can get leds with clear, clouded, or colored+clouded encasings. Only with the latter can you tell what color they are when they're off. One ti

incidentally you can get leds with clear, clouded, or colored+clouded encasings. Only with the latter can you tell what color they are when they're off. One time I had some red leds in clear encasing in a parallel configuration and they inexplicably would not light up... it turned out one of the leds was actually infrared and it was invisibly on and sucking up all of the voltage