... hybrid. 2.High power efficiency 3.electric yaw system 4.off-grid and on-grid system 5.CE certificate wind energy street light Effsun ... function,over current,under voltage protection.8,Low power:whole system using industrical devices,adopting high temperature,cold,wet and ... . Modern graceful,landscape beautifulg. Economic benefit is obvious,don't need to pave electric wire wind energy street light hot