GudCraft WG500 model is 500W Wind Generator. It is a low wind speed, small-size wind generator with starting speed just 8mph. Yes. This model starts producing the wind energy just from 8mph wind. Fresh 2011 Version just shipped from the factory. This is the latest design with 3 new blades. This item is new in the factory unopened box. Comes with integrated charge controller, instruction manual and 1-year warranty from the purchase date. Works with both 12 and 24 volt applications.