... FunctionsProtection against anti-charge at night,battery over charge,over discharge protection,Joint-reversed of solar modulesControl methodPWMSize :D ... 4/6.6Remark: if the hybrid system, the solar panel and wind turbine output need the same, then ... 48V, solar panel output also need 48V.Warranty:1 yearDelivery time:3-5 days for sample 400w wind/solar hybrid controller 12V/24V solar charge controller