... and release power,prolong battery life.5,Operation made:automatic light/time control,user self-setting,convenient and utility.6 ... RTM .Product Informationa. Wind turbine generator have mechnical yawing automatic, blades lost speed ,electromagnetic brake etc...multi-protection, ... be applicable in most field.d. Light control,time control,single light,double light,humanization of muiti-compound modee.The ...