Review on 💡 High-Performance 12V 40 LEDs Van Interior Light Kits: War-Horse LED Truck Bed Light For Trucks, Vans, Caravans, Trailers, Lorries, Sprinter, Ducato, Transit, Boats - 10 Modules, White by Lamar Marshall

I installed these in my 5ft x 10ft enclosed trailer with pin switches on the doors so they trip every time the door is opened. I installed a gel battery that charges when the parking lights are on, and with a diode, the gel battery doesn't see the tractor when the car is off. I added about two feet of wire between each light, creating two rows of lights like the top right image in the ad. Now my trailer has enough light for my purposes. I didn't have to rely on the included double stick tape as my trailer was covered in 1/4" plywood the entire length of the roof just above the framing members. I used tape to hold the blocks in place long enough for that to happen I was able to install them.Insert a screw in the hole in the middle of the blocks and screw it to the plywood.Very good blocks.