Solar battery:0.5W,Battery:6V2000mah; It can work 10-60 hours if you electrize for 8 hours ,bringing autocontrol electric charged and discharged function and 12 kinds evasive functions along; 40 LED , light bodies have 5 meters long; With the auto-switch device and hand movement touching switch , let you feel more convenient. Can supply different length with different LED quantities,and the price is different. Please let me know what's you need..