This stop/turn tail light measures 3 1/8" high and 7 1/4" wide and the light itself measures 2 1/4" high by 6 3/8" wide. There are 10 LED diodes and the light fits into a standard 2 1/2" by 6 3/4" oval hole. Watertight and durable, there are no bulbs to replace and it uses 90% less energy than standard lighting. This stop/turn tail light measures 3 1/8" high and 7 1/4" wide and the light itself measures 2 1/4" high by 6 3/8" wide. There are 10 LED diodes and the light fits into a standard 2 1/2" by 6 3/4" oval hole. Watertight and durable, there are no bulbs to replace and it uses 90% less energy than standard lighting. This stop/turn tail light measures 3 1/8" high and 7 1/4" wide and the light itself measures 2 1/4" high by 6 3/8" wide. There are 10 LED diodes and the light fits into a standard 2 1/2" by 6 3/4" oval hole. Watertight and durable, there are no bulbs to replace and it uses 90% less energy than standard lighting. This stop/turn tail light measures 3 1/8" high and 7 1/4" wide and the light itself measures 2 1/4" high by 6 3/8" wide. There are 10 LED diodes and the light fits into a standard 2 1/2" by 6 3/4" oval hole. Watertight and durable, there are no bulbs to replace and it uses 90% less energy than standard lighting. Lighting is important and not just in the interior of your RV. The lights on the outside of your RV or trailer are probably the most important part of safety when it comes to driving at night. Without these lights, other drivers wouldn't be able to know whether your RV is about to turn or back up and they might not be able to see where it stops and starts. Without these very important exterior components, you could find yourself in an accident, pulled over, or in another poor situation. If you want your vacation to be marked by how fun and exciting it was and not the trouble you got into because of your lights, you need to check them before heading out. If they don't look so great or have already stopped working, you need to get them fixed as soon as possible. If you've found yourself in this situation, just take a look through our selection of trailer lights to find what you're looking for so you can get back out on the road. Details 12V wiring Wire connections: red=brake light; White=ground; Black=tail/running 3-pin watertight plug with wires Pre-wired for Quick and Easy Installation High impact poly-carbonate lens and housing are sonic welded 10-super diodes LED Light Poly-carbonate housing/lens with rubber grommet