MISOL Wind charge controller 400W 12V 24V wind regulator, for wind turbine 400W Wind charge controller 400w, 12/24v Battery voltage: 12V/24V, auto switch Output Current: 15A Brake voltage: 15V (for 12v system), 30v (for 24v system) Floating charge voltage: 13.5V (for 12v system), 27v (for 24v system)