Create a festive warm glow with it. Traditional bulb shape works great outdoors or indoors on your tree. Strings have a lighted length of 24' and a total of 90 sets can be connected end to end for a total of 2,250 total lights. With up to 98 percent energy savings and up to 25,000 hours of bulb life, these lights end up paying for themselves in the cost of replacements.