Command 12V Compact Taillight with License Plate Mount. Anti-corrosion design (including sockets) using an S-8 style lamp that maintains high reliability in demanding environments. Bulb #3157. SAE certified. Dimensions: lightweight 8-5/8" x 3-3/4" x 2-1/8"; lens 8-5/8" x 3-3/4" x 1-3/4".