The Best Christmas Tree Lights Blackened References. Inspect the christmas lights (image credit: I replaced all of the lights, plugged them in and some branches are dim, some are normal, and one is extra bright.

Web hold the end of your christmas light set, and starting from the top, wind the string of lights around the tree to the bottom. You'll find the fuse (or two) located in the cord's plug. There are too many to fix.