400W Roof-Mounted Wind Turbine

Rotor Diameter (m): 1.95Material and number of the blades: Enhanced Nylon*3pcsRated power/maximum power: 400W/500wRated wind speed (m/s): 9Startup wind speed (m/s): 2.5Working wind speed (m/s): 3~25Survived wind speed (m/s): 40Rated rotate speed(r/min): 450Working voltage: DC12/36V/24V/48VGenerator style: Three phase, permanent magnetCharging method: Constant voltage current savingWeight: 30kgTower height (m):6Suggested battery capacity: 12V/200AH Deep cycle battery 2pcs Life time: 15years