Specifications:

3W Solar power system
1.solar panel: 5V/3W solar panel with 3M cable
2.bulb:2pcs 1W superbright led with 3M cable for each and switch on the cable
3.Input: DC5V
4.battery: 3.7V/6Ah lithium battery
5.USB output:2.1A
6.package: 16sets/ctn