Partsam 4pcs Red/Amber 10 Diode LED Oval Trailer Truck Stop Turn Brake Tail Light Grommet Partsam ( 2Amber+2Red ) 6" Oval Led Truck Trailer Light Lamp--Stop/Tail/Turn Lights - 10 Diodes For trucks trailers, tractors, semi-trailer, dump truck, bus, boat, camper, cargo, special vehicle, etc. Heavy trucks such as Peterbilt, FREIGHTLINER, KENWORTH etc. 12V Sealed light Assembly, impact resistant and less susceptible to shock damage. Each LED light is water-tight sealed. Light Size: 160mm x 58mm x 25mm (6.3'' x 2.3'' x 1''); Size with grommet: 185mm x 80mm x 25mm (7.3'' x 3.1'' x 1'') EASY TO INSTALL: 3 Wires Connection - Black Wire is the Ground; Red Wire is the high brightness; White Wire is the low brightness.