wind&solar street lamp 3, the poles were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature: -50 degrees to +70 ... wind&solar street lamp1, solar panels made by ourselves2, microcomputer intelligent ... high, hot-dip galvanizing spray. 4, ambient temperature: -50 degrees to +70 degrees 5, for rainy days, 10 days -15 days ...