... energy-saving,non-pollution, charge, and on / off process with intelligent contr solar stainless Royal courtyard lamppoles 2.5 m high ... including solar panels bracket. Monocrystalline 25W, the efficiency of 16.5% over battery 12V17AH, light DC12V5W LED lights one, lighting time ... 6-8h / day, can guarantee a continuous overcast and rainy days 5 days lighting.