Check the listing for details. Vertical Axis Wind Power Turbine Generator Controller Home Windmill Kit 400W 24V. Color: Multicolor, Condition: New. Listed at 109.52 USD. Specification Material: Abs, Neodymium Iron Boron Process: Oxidation, Paint Spraying Color: Blue+White+Red Style: Modern Generator Type: Rare Earth Permanent Magnet Generator Braking Method: Electromagnetic Wind Direction Adjustment: Automatic Applicable Battery Voltage: 24v Shutdown Voltage: 29v Restart Voltage: 26.4v Rated Power: 400w Max. Power: 450w Protection Level: Ip67 Max. Speed: 300rpm Noise: ≤ 30db Working Temperature: -40~80℃/-40~176℉ Blade Size(D*H): 53*75cm/20.87*29.53in Rated Wind Speed: 14m/45.93/Ft/S Starting Wind Speed: 2-2.5m/6.56-8.2ft/S Instantaneous Max. Wind Speed: ≤ 45m/147.64ft/S Max. Wind Speed: ≤ 40m/131.23ft/S Product Size: 85*38*19cm/33.46*14.96/7.48in Package Size: 86*38.5*20cm/33.86*15.16*7.87in Gross Weight: 9.84kg/21.69lbs .