Ten-high 400W Wind Mppt charge controller,12V/24V Auto Distinguish Wind charge controller,Auto Distinguish,MPPT Perfect electric protection functions,Use waterproof/dust mask design.Limited pressure, current limiting charging ways,ensure optimum charging battery is always in the state. Of high grade aluminium alloy appearance design, small size, cooling effect is good. Voltage grade12V(6-14.4V) / 24V(12-28.8V)