Using this cab roof light set is easy. First, find a suitable spot on your Ford Super Duty truck where the factory didn't install cab roof lights. Drill 2 small screw holes and a 1/4' round hole for the wires. Then, attach the light using the provided screws and connect the wiring harness. Make sure all connections are secure. When it comes to maintenance, keep the lens clean with a soft cloth and mild cleaner. Since it's UV - treated and has an IP67 waterproof rating, it can handle different weather conditions, but avoid using harsh chemicals. Note that this light is only for Ford Super Duty trucks that didn't come with factory - installed cab roof lights, so don't try to install it on other types of vehicles or trucks with existing cab roof lights.