These dual function 1.85" LED's act as a brake light and running light. The size of the housing is 2-1/8"  diameter by 1-1/4" long. The wires exit through the bottom of the housing.

Comes with a stainless steel lock washer, 3/8"-24 bolt for mounting, universal mounting bracket, and both a flat and dome lens. 

For a smaller version of this light, check out our 1.25" Speedster Tail Light.