Review on 50-Pack Amber Mini Round Side Marker Lights With 3 LED Bulbs For Trucks, Boats, RVs, And Buses - Universal Waterproof Sealed Design, 12V DC Compatible by Jonah Koehnke

these are great little Lights, wire is right size for the light, the red,amber and white are very bright, the smoked white and clear white are about the same brightness. I used the white with a switch to illuminate the inside of the trailer loading area and its works great. the mounting hole is a 3/4 inch however for a better snug fit I ground the bit down about 1/32 and they fit perfect. Also these lights will fit back to back in a 2" square steel tube and that made it easy to mount lights on both sides of the rail and connect wires. I was surprised these led's were made so well.