Partsam 2PCS 4inch Waterproof Backup Reverse Light Flange Mount 12 LED Truck Trailer RV White clearance lights And that little spot is

And that little spot is about 9/16 inch

these side turn signal lights will create a bright luminous burst of light each time the lights are signaled and will help other drivers see where you are on the road and know when you need to change lanes

This is a 3-WIRE assembly

whatever suits your application

Neither any cutting

Partsam 2PCS 4inch Waterproof Backup Reverse Light Flange Mount 12 LED Truck Trailer RV White clearance lights And that little spot isPartsam (2 x White) Sealed Waterproof 12 LEDs light Stop Turn Tail Brake Lamps Reverse Backup Lights for Trucks, Trailer, RVs, and Boats. Acrylic lens is sonic welded to the housing, waterproof lens and housing in a single unit. Note: the Trim is not removable; All weather molded plastic housing and durable lens protect against corrosion. Outer Diameter: 140mm (5. 5''); Inner Diameter: 105mm (4. 1''); Height: 24mm (0. 9''); Drilling needed, Hole