... were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature: -50 degrees to +70 wind&solar street lamp1, solar panels made ... control, overcharge, over-release protection. 3, the poles were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature: -50 ... 7, special waterproof battery solar lamps. 8, lamps: computer design, die-casting aluminum, plastic. 9, the lighting time, 10-14 hours a ...