Size: 78*38*13mm Main components: Solar panel 2V/30mA, Ni-MH battery 1.2V/60mAh, LED 2PCS Working time: 1 to 2 hours per day, can continue to work 2 to 3 hours. Our company specializes in solar modules, solar panels, solar light, epoxy encapsulation solar panels, lamination solar panel and ultrathin solar panels. We can produce solar panel according to your requirements. Email: sales02@desunpv.com My msn is zhangxiaojin162@msn.com, welcome to contact me.