... hybrid. 2.High power efficiency 3.electric yaw system 4.off-grid and on-grid system 5.CE certificate 50w led wind solar ... 8,Low power:whole system using industrical devices,adopting high temperature,cold,wet and so on conditions.9,Control:with battery voltage ... ,optimizing design,be applicable in most field.d. Light control,time control,single light,double light,humanization of muiti-compound modee.The ...