... Life span:more than 20 years Company detail:Qingdao Xingguang Wind Power Generator Co., Ltd.is situated in the beautiful ... Our main products are 300w-50kw HAWT,300w-10kw VAWT,wind/solar hybrid system,soalr panels.Our company insists on ... Over speed protectionYaw automatically ,electromagnetism protectionWorking wind speed3-25(m/s)Suggest batteries10pcs 12v 200ahSecurity wind speed50(m/s)Service life> ...