wind&solar street lamp 3, the poles were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature ... panels made by ourselves2, microcomputer intelligent impulse control, light control, when additional control, overcharge, over-release protection ... days, 10 days -15 days. 6, light sources and efficient high-power LED. 7, special waterproof battery solar ... than 20 years wind&solar street lamp