Solar powered, no wires needed, just put it under the sunshine to absorb the solar energy in day, then the solar panel will transfer the solar energy into light electricity in dark. Features: Two shell colors and two light colors available. IP 65 waterproof, heavy durability for all weather resistent. Auto on and charge in dark and auto off in day or bright area. Solar panel and lamp head are installed separately to meet outdoor charging and indoor lighting requirements. Suitable for both outdoor and indoor use, illuminate where you want to illuminate, enjoy bright life. Specifications: Shell: black/whiteoptional Light Color: white/warm whiteoptioanl LED: 16+16 Solar Panel: 3.5W, 5V Battery: 3.2V, 26650#, 5500mah Package Weight: 950g/33.5oz Packgage Size: 300*170*150mm/11.8*6.7*5.9in Package List: 1* Lamp