Partsam 5 x 3/4" Amber LED light Bullet Button Round Led Marker Trailer Lights Single Led Partsam 3/4" Miniature Round Truck Clearance Marker Light--Amber Lens/Amber Light. Function as clearance/marker lamp,interior and exterior use. Applications: Indoor & Outdoor uses, Back up light, Off Road Lighting, Truck, Trailer Interior & Exterior Lighting, Construction Lighting, Garden, Backyard Lighting, Boat Lighting. White wire is the GROUND wire and Black Positive. Single LED; 12V. Easy Installation, Great Performance Long lifespan.