20X 3/4 inch 3led side signal lights truck with trailer turn marker light 1. ; Low power and current-long LED lifespan. Water and dust resistant.2. 2 built-in superflux LEDs with long life.3. Space-saving; Grommet attached to 1-3/8 inch hole; 1-1/4 inch diameter light (1-3/4 inch OD rubber grommet); It needs a 1.375 hole and about 3/4 inch deep in the back. Specifications:Light Source Power: 1W Voltage: 12VS Light Frame: 80LM Life Expectancy: More Than 30000 Hours Wiring: 2 Wires (Black & White)Application: Car, Truck and Trailer Lighting; Inside the boat and outside light; Roof LightColor: Amber Coating/Red ShellMaterial: PlasticPackage Contents:20 x LED Side LightOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.