wind&solar street lamp 3, the poles were: 6- ... 4, ambient temperature: -50 degrees to +70 wind&solar street lamp1, solar panels made by ourselves2, microcomputer intelligent impulse control, ... and efficient high-power LED. 7, special waterproof battery solar lamps. 8, lamps: computer design, die-casting aluminum, ... time, 10-14 hours a day. 10, the system life: more than 20 years wind&solar street lamp