DELight 40x10 ft LED Tree Lights with 1920 high-voltage LED beads operate from standard household 120V AC power Powered by a 120V source but stepped down to a safe 30V with transformer, provide both exceptional brightness and peace of mind Includes 40ft steel support cable to hang the string lights in large open areas, helping minimize strain on the light cables and prevent sagging Tailor the mood for any occasion with pre-set 8 lighting modes Ideal for parties, Christmas trees, weddings, events