High-Quality Materials: Marker Lights are made of ABS plastic material,waterproof Smoked Lens, sealed Light, Improve the safety of driving at night or on rainy days..Perfect Size: Standard 3/4 Inch LED Miniature Round Truck Clearance Marker Light.Approx 26*21mm，Cable length: 215mm, DC12V, 3 LED lens inside of the lamp offer extreme bright light. Low consumption, high energy, long life..Universal type: 3/4" Mini Round Truck Clearance Marker Light, Used for clearance Lamps, side marker or identification light etc. it can be widely used to most of vehicle styles for Use on Heavy Duty Trucks, Semi Trailers, Cargo Trailers, Boat Trailers etc..Easy to Install: Surface Mount & 2-Wire Design; black is for negative while the other is for positive. Easily mounts into standard 3/4" hole.DOT/SAE Approved!.Life-time After-sale Services: If there is any questions when you install or using the product. Please feel free to contact us. We will supply life-time after-sale services and make every effort to resolve the problem for you!