Shop Nilight 4Inch Round Trailer Tail Light 4PCS 24LED White Stop Brake Turn Marker Light w/Flush Mount Grommets Plugs IP67 Waterproof for 12V Truck Trailer Bus RV Camper ATV UTV in high quality, support 2 Years Warranty. Equipped with low brightness mode and high brightness mode. The low brightness can work as tail light, the high brightness can work as turn signal lights. Vehicles behind can clearly see changes in the brightness of the lights.