400W generator uses the wind to generate power to run your microwave, lights, TV, satellite dish, cellphone, stereo, and more! Fight back against soaring energy prices - generate endless free electricity yourself! This wind turbine installs quickly and harnesses the wind to generate power that's stored in rechargeable batteries (not incl.). Features carbon fiber blades for low noise and high performance, industrial strength cast aluminum body that withstands wind speeds up to 110 MPH and Peak Power Tracking smart controller for more efficient charging. Also has low start-up speed of just 7 MPH so even if the wind slows down, your power generation won't. Amp meter included. Rotor diameter 42". Mounts on 1.5" schedule 40 pipe (not incl.). Model may vary slightly from photo. 2-year limited warranty.