The d.light D20 solar home system is a personal power grid for your home or business. This modern, efficient energy solution includes a solar panel, mobile-charging battery pack, two solar lights, two light switches, and a portable lantern. Dual light settings provide power for eight hours on the high setting or up to 15 hours on the low setting.The rugged product design of the d.light D20 ensures you have power every day, whenever you want it. The d.light D20 is weatherproof and water-resistant.