The Gama Sonic GS-33K Crown solar-powered LED shed light makes it easy to provide light in your shed, greenhouse, or garage. There are no electrical wires to install. Just secure it to the roof or side wall and let the sun do the rest. The unit can be easily installed on all types of material: metal, wood, or plastic. Its Ni-MH battery is charged by a powerful mono-crystal solar panel and can power the super-bright LED light for 3-4 hours on a single charge. The built-in night light makes it easy to find the on/off control in a dark shed.