Kingbright leds 3mm 5v and 12v kingbright l 7104id 12v this miniature 3mm high efficiency red led from kingbright is part of a superb high quality range of components incorporating an inbuilt series resistor enabling the led to be directly connected to 12v supply linestough reliable and built to last this led has been manufactured with gallium arsenide phosphide kingbright l 7104id 12v 3mm 12v high efficiency red led 20mcd