... fan8.Low voltage protect,over voltage protect,overload protect,short circuit protect,over temeprature protect,low voltage cut-out, low ... returned after 7 days of delivery are only eligible for repair.The buyer is responsible for all shipping costs incurred. ... ); } )(); 500W DC24V AC110V high frequency,single phase,off-gird,car inverter, pure sine wave power inverter,CE approved,1 year warranty.