... panel ,battery) 2)CE,EMC,IEC,ROHS, 15w solar power system for home used APPLICATION:1) 12V DC lamp, 5V ... wastage power ,low heating value,high conversion efficiency.3.collection of complete indicating function Company brief introduction:Guangzhou Future Solar Technology Co., Ltd ... Our warranty policy and our after-sale solution: The solar power system is composed of 4 parts, solar panel, battery, ...