Features: Battery-powered Ice White LED lights in a strip. 4 Timer Options (4hr/6hr/8hr/10hr). Energy-efficient, high-endurance LED lights ensure a long-lasting dazzling effect for the entire Christmas season! Suitable for use indoors & outdoors. Comes with eight-function controller with memory chip. 4 x AA Battery Required (Energizer Batteries Inc). Specifications: Battery to First Bulb: 50cm Bulb Spacing: 10cm Total Length: 20.4m Bulb Rating: 3V 0.06W Set Rating: 12W 4 x AA Battery Required (Energizer Batteries Inc).