The 5102H1-12V is a red LED indicator light from the 5100H series, featuring a built-in resistor for direct use with a 12V power source. It provides a typical luminous intensity of 4.0 mcd at a peak wavelength of 635 nm while drawing a typical forward current of 13 mA. The component is housed in black nylon and comes with 6-inch, 24 AWG wire leads for connection. Designed for simple panel mounting, it snaps into a 0.249" to 0.254" diameter hole, making it ideal for status indicators in electronics where a 12V supply is readily available.