Partsam 6" Oval LED Brake Light Stop Tail Turn Light for Trucks 12V Waterproof Red 10LED Partsam (1 x Red) 6" Oval 10 LED Red Stop Light / Turn light /Tail Light, and the outside dimension within the grommet is 6.5inch, Application: Trucks, trailers, tractors, semi-trailer, Dump Truck, bus, boat, special vehicle,etc. For Heavy Duty trucks like Peterbilt, freightliner, international ,Kenworth, mack,etc Sealed & waterproof assemblies,PC lens + grommet housing welded together to ensure a permanent and water proof seal; These LEDs draw less current, generate less heat and are brighter and light faster than an incandescent bulb. Light Size: 160mm x 55mm x 21mm (6.3'' x 2.2'' x 0.8''); Rubber Grommet Size: 184mm x 77mm x 25mm (7.3'' x 3.1'' x 1'') EASY TO INSTALL: White Wire - Ground; Red Wire - high brightness; Black Wire - low brightness.