Item Type: Power Inverter Material: Aluminium alloy Gross Weight: 1086g / 38.3oz Size: 27.7x10.4x5.6CM / 10.9x4.1x2.2in Specification: 12V 24V to 220V, 1200W Input Voltage: 12V Output Voltage: 220V Output Frequency: 50HZ Continuous: 700w Peak Value: 1200w Output Waveform: Pure sine wave Application: Applicable to cars, wind power generation, solar power generation, household power generation, pollution free power generation, etc. Common problems and solutions: The inverter indicator does not work when the electrical appliance does not work. Battery damage: check the battery and replace it. Reverse connection of storage battery: check whether the connection between storage battery and inverter is correct. The connection is not tightened: check the connection between the cable and the inverter, and tighten the battery terminal. If the automobile cigarette lighter is used, the maximum power of the electric appliance shall not exceed 150W.