Power  50KW Diameter of wind wheel 18m Rated speed (rpm) 80 Rated wind speed 13m/s Rated power  50kw Maximum power 55kw Output voltage 380v Starting wind speed  3.5m/s Working wind speed 3.5-20(m/s) Security wind speed 40m/s Top quality excxpt tower 2050kg Guy master tower height   18m Tower size (diameter*thickness)mm ∮500*10 Controller parameter 380v 120A Inverter Parameter DC380V →user’s local voltage & frequecy Suggested capacity of storage battery 12V200AH 120 pcs can supply power for Village, air-condition, refrigerator, washing machine , water pump ,electric pan, color TV, lighter, fanner, charger