About Product:Light Source: LED/energy saving lamp battery panel: monocrystalline silicon or polycrystalline silicon battery panel battery lithium battery controller: microcomputer intelligent controller, let off charge, over discharge, output short circuit protection and automatic control according to light and dark, working time of turning off the lights 8-10 hours (depending on the specific configuration of street lamps) Height: 6m-12m light pole material: iron and aluminum products, surface hot dip galvanized after plastic spraying treatment.