... % natural energy 3)CE, ISO, patents 4)safety Wind solar hybrid LED streetlight system can guarantee the lamp will work for 10 hours ... speed, 2.5m/s cut-in wind speed, with high power efficiency, no noise, less vibration and balance structure, darrieus and ... Acid Gel battery, span life for 4 years; Mono Solar panel, power efficiency 17%; LED streetlamp, 60-120W, Good performance, IP65, with heat ...