Check the listing for details. 100W 24V Vertical Wind Turbine Generator Helix Wind Generator With Controller. Condition: New. Listed at 209.59 USD. Specification Color: Blue, White, Red Material: Nylon Fibre, Aluminium, Stainless Steel, Copper, Magnet Process: Plastic Spraying Assembly Required: Yes Installation Position: Top of Pole Generator Type: Permanent Magnetic Levitation Generator Brake Type: Electromagnetic Brake Wind Direction Adjustment: Automatic Battery Type: 2* 12V Gel or Lead-acid Batteries(Not Included) Noise: 30dB Working Temperature: -40°C-80°C/-40℉-176℉ Maximum Power: 100 W Rated Voltage: 24V Protection Grade: IP67 Starting Wind Speed: 2.5m/8.2ft/s Rated Wind Speed: 13m/42.65ft/s Safe Wind Speed: 45m/147.63ft/s Number of Blades: 4(Including the Auxiliary Wind Wheel) Product Size(D*H): 53*75cm/20.87*29.53in Net Weight: 10.5kg/23.15lbs Package Included 1* Vertical Wind Generator 1* Controller.