This red, LED exterior light from Diamond Group by Valterra is weatherproof and waterproof. It is 4 inches in diameter, has 10 diodes, and operates from 8-16 volts. The diodes have the following functions: stop, turn, and taillight.
Weatherproof LED exterior light Dimensions: 4-1/4" diameter x 3/4" depth Operates from 8 to 16 volts Functions as a stop, turn, and taillight Meets OEM standards