Partsam 2Pcs 2 Inch Round Trailer Led Clearance Side Marker Lights Red 9 Diodes with Reflectors Waterproof Sealed 2 Inch round led marker lights Fender Cab Panel Lights Grommets and Pigtails Included

2inch Diameter round. Waterproof, LED trailer light serves as either a side marker light or clearance light. Miro-reflex reflector increases light output. Recessed mount with grommet (INCLUDED). Accepts standard 2-prong plug; You can drill a hole about 2-1/4inch to install it; FOR MORE DETAILED DIMENSIONS, PLEASE KINDLY CHECK THE PICTURE LEFT; Universal for Pickups,Truck Trailers,SUV van Caravan and Boat Lorry Bus Two-wire design includes both lead wire and ground wire for mounting to all surfaces: WHITE IS GROUND AND BLACK FOR POSITIVE; Led Marker light,Auto side Lamps,clearance light,identification light,Trailer Light etc.   -See on Amazon-