ONS-600 Applying area: It can be used which the power is less than 600W, like laptop, music CD and work lamp, notebook computer etc. You can use it in home, office, and outside.. Protection: Overload protection, High temperature protection, Short circuit protection, Reverse polarity protection. Auto re-start function: When the inverter shuts off once it being in protection, it is not necessary to press the switch (on/off), just moving the high loads, the inverter can restart automatically. So there is no need to place the spare fuse. ITEM ONS-600 Continuous Power 600W Peak Power 1200W Output Wave Modified Sine Wave Efficiency >90% Input Voltage DC12V,DC24V Low Voltage Protection 10.5; 20V Static Current <0.20A Output Voltage AC100V, 110V, 120V ,220V, 230V, 240V Frequency 50Hz, 60Hz Output Overloading Protection >600W High Temperature Protection YES >45°C Short Circuit Protection YES Reverse Polarity Protection YES Auto Re-start Function YES Dimension mm Net Weight KG Carton Meas 69*26*26cm Packing Plastic Blister