No electricity needed to decorate with this set of blue & white multi-function string lights, just a sunny day to charge the solar panel and the 200 bright blue and white LEDs will glow all night. The multi function switch allows you to choose between eight different modes, including steady, flashing, chasing and more. Measuring 77 feet from first LED to last LED, this string light set is perfect for decorating porches, trees or bushes. A 6-foot lead wire is connected to a solar panel that swivels at the top to angle towards the sun. 1.3 watt solar panel and three AA rechargeable Ni-Mh batteries are included. A built in automatic photocell control turns lights on at dusk and off at dawn. Light string and solar panel meet IP 44 waterproof standards. Solar panel measures 6-inch by 4-1/2-inch by 1-1/4 inches.