how do christmas tree lights work

Christmas tree lights are electrical devices that use low voltage to illuminate the tree with a festive glow. The lights are typically small and thin, with an LED bulb encased in plastic. The lights are powered by a string of wires that are plugged into an electrical outlet. The wires are typically green or brown to blend in with the tree's branches and needles. Some types of lights can be synchronized to blink or change colors, adding even more sparkle and shimmer to the tree.