Solar String Lights
For the ultimate in energy efficiency, consider solar string lights. The solar panels collect energy in the day for use after dark. Normally solar-powered LED string lights operate with a light sensor and come on as the sky darkens, although most also come with a switch for user control. In addition to being energy efficient, solar LED string lights have the added advantage of not requiring an outlet, and are thus an ideal choice for use on outdoor trees, arbors, and in other garden, deck, or patio spots that lack easy access to power. Imagine the convenience of solar lights, which means not having unsightly extension cords for anyone to trip over!