Model:FD5.0-3000W Rotor diameter:5.0m Blades quantity: 3pcs Direction: always downwind Blades material: Glass fiber reinforced plastic Rated output: 3000W Maximum output: 5400W working voltage: DC48V/96V/110V/240V/500V,AC220V/380V working wind speed: 4-30m/s Initial wind speed: 3m/s Nominal wind speed: 10m/s(22.5mph) Storm-stand: up to 50m/s Rated rotate speed:240r/min Wind turbine type: Three-phase, Permanent Magnet (on constant magnets) Working temperature: from -40 to +60 C Stop method: Automatic+ Manual Battery voltage(V)/capacity(AH):12*20-240/200 Speed regulation method: Yawing and electric magnet damping. Accumulators full charge time: about 8 hours Mast height/weight: 9m - optional /150kg Weight: 300kgs (without mast).