... poles were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature: -50 degrees to +70 wind&solar street lamp1, solar panels ... . 3, the poles were: 6-12 m high, hot-dip galvanizing spray. 4, ambient temperature: -50 degrees to +70 degrees 5, for ... rainy days, 10 days -15 days. 6, light sources and efficient high-power ...