The holes in the lights are STANDARD 6" oval grommet mount lights, and 2" round grommet mount side marker lights, The LED lights are Standard size 6" oval and 2" round lights. Long Life LED, VERY BRIGHT! Can be mounted to the side, top or bottom of your trailer.
Weld-on Type Heavy Duty Steel Box with Oval Opening for Tail Light and Round Opening for Side Light, helps to protect exterior lights from the elements; Light box dimensions: 8.78"L X 3.92"H X 3.82"D, 6.75"x2.5" front oval light hole(grommet mount), 2.2" round side light hole, 3/4" round wire hole;
6 Inch Oval Led Trailer Tail Lights: 7 2/5" L x 3" W Waterproof Oval Red Led trailer tail light serves 3 functions: turn signal lights, stop brake lights, or just tail lights; Flush mount with grommet and 3 prong wire pigtails; 10 Red LED Diodes in Smoke Black Lens; Work on 12v DC, 3 wires with 2 steps Brightness: Black Wire - Ground; Red Wire - high brightness; White Wire - low brightness;
2 Inch Round Led Marker Lights: Red 2" Diameter round Waterproof LED trailer light with 4 LED serves as either a side marker light or clearance light. Flush mount with grommet and 2 prong wire pigtails; Outer Diameter: 2.5"in., Inner Diameter: 2"in., High Diameter: 3/4in.(W/ Grommet);