Output frequency is: 50Hz for 220V model /60Hz for 110V model. ⑦Overload protection. This is a modified sine wave inverter,NOT applicable for devices which work by built-in motor, hair dryers,air conditioners, coffee machine,water pump, induction cooker,refrigerators and microwave ovens etc.Make sure that the total rated power of the connected devices is ≤ 400W.
eBay