This item has 100 LED lights in the 5 tubes. These lights cascade down so it looks like it is snowing. They are very mesmerizing and very unique. This set is an add on set and you must have UL2505N to plug into this set. You can add up to 3 add on sets total, creating a strand that has 20 tubes and spans 60 feet. This set is for INDOORS ONLY.