Partsam 4Pcs 4 Inch Round Led Trailer Tail Lights Kit Red 12 LED 12V Waterproof for Truck RV Boat

5 inch Diameter round Waterproof trailer light 12 LED serves 3 functions as stop light, turn signal light and tail light; Compatible with 12V DC systems. Approx. 5 inch diameter Grommet Ring and 4" inner diameter and 1 3/16" Thickness; Red lens with 12 led diodes; IP65 waterproof light fixture and effectively withstand the invasion and corrosion of sand, dust, dirt, rain, snow etc. These Lights are impact resistant and less susceptible to shock damage. Each LED Light is water-tight sealed. Easy Installation: White is the ground, red is the high brightness for stop light / turn light / brake lights and Black for low brightness as tail light / running light. Compatible with almost All automobiles and devices equipped with a 8-16 Volt DC power source such as Semi Truck, Semi Trailer, Service Truck, Bus etc.