... /220/230 1200W DC to AC UPS power inverter with Battery Charger,used in home ,outdoor All ProtectionOver-loadOver-voltageLow-voltageBuzzer ... .0v Low voltage shut-down range (unloaded): 9.7-10.3v Over voltage shut-down range (unloaded): 14.5-15.5v ... everywhere, where is no electricity !Simply connect with 12v/24v Battery as in a Car, Motorcycle, Camper or Boat and use ...