Leo at qdfzy.Com Model:Fzy300w, Rotor diameter:2.2m, Blades quantity:3 pcs, Blades material:Frp (fiber reinforce plastic), Rated speed:400r/min, Rated output power: 300w, Max output power: 450w, Output voltage: dc24vor 12v/ac220v, Start wind speed:3m/s, Rated wind speed:8m/s, Working wind speed: 3-25m/s, Security wind speed: 40m/s, Speed regulation:Yaw& magnetic resistance, Charge control:Aic (automatic intelligent control), Wind turbine type: pmg (permanent magnet generator), Working temperature: from -40 to +60, Annual average energy production: 750kwh, Recommended accumulators:12v100ah 1-2 pcs( 200ah ), Accumulators full charge time: about 8 hours, Tower type: pull wire tubular tower or cone tower(optinal), Tower height:6m (optional), Weight:20kgs (without tower), Can supply power for: lighting, electric fan and charger, Plywood box