No electricity needed to decorate with this set of Multifunction string lights, just a sunny day to charge the solar panel and the 100 bright white LEDs will glow all night. The multifunction switch allows you to choose between eight different modes, including steady, flashing, chasing and more. Measuring 38 feet from first LED to last, the clear wire is virtually invisible, letting only the light show on any surface. 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 with this LED string light. A built in automatic photocell control turns lights on at dusk and off at dawn. LED Light string and solar panel meet IP 44 waterproof standards. Solar panel measures 6-inch by 4-1/2-inch by 1-1/4-inch and will brighten your home with clean, green power.