Solar Energy Street Light 1)power:50W 2)solar powered,environment friendly 3)cert.:TUV, IEC, CE,UL 4)life span:20 years Solar Energy Street Light 1) Solar panel type: Monocrystalline silicon 2) Solar Panel power: 180W 3) Battery: Maintenance Free GEL or Lead-acid Battery 4) Light Source: Super Bright LED 5) Installation hights: 5-12 Meter 6) Operating time: Automatically turn 4 cluster on after sun goes down, and turn off 2 cluster to saving energy mode after midnight. 7) Cloudy(Rainy day)days remains: 8-9days Solar Energy Street Light Specification: 1)solar street light panel 180W monocrystalline silicon,20 years life. 2)maintenance-free gel battery 12V/24V 50AH~250AH, over charge and over discharge protection, 5-8 years life. 3)controller solar digital programmable intelligent controller, switch on/off by light and time. 4)light source LED light source,50W. 5) work time 8-12 hours a day, and 8-9 rainy days. 6)pole zinc-plated steel pole and coating to color of your choice,with the whole kit of stainless steel fasteners, 20 years life. 7)work temperature -30~+60 degree 8)wind resistance >150km/h 9)protection grade IP 65 10)height 5m~12m