Do NOT buy any 'pre-lit' products! The full string of lights rarely lasts more than one season. You will waste a significant amount of time trying to replace bulbs and the tiny fuses, but to no avail. If you must buy something buy the unlit versions and string them yourself. I just hung my garland, and for the second time in four years a whole section is unlit. Last year I spent three hours completely unstringing the dead lights from a tree no more than two years old. They clamp and twist and bind the lights so they are a chore to get off. So this year I knew I would have to string the tree. Now I guess I have about three hours of unstringing a garland and restringing it. Serves me right for being lazy. Avoid the pre-lit products!!