how do you change a fuse on christmas lights

It's quite simple, really! First, make sure the lights are unplugged and the power is off. Then, locate the faulty fuse and remove it. Next, find a replacement fuse of the same size and rating and insert it into the empty socket. Finally, plug the lights back in and test them to make sure they're working properly. It's a quick and easy fix that can save you from having to replace the entire string of lights.