JFIND JF02 12V to 220V Pure Sine Wave Power Inverter, Universal Plug, Rated Power: 1000W; Instantaneous Power Rating: 2000WUse Required Reading 1. This machine has no reverse connection function, battery positive and negative lines can not be connected back, otherwise it will damage the inverter. 2. There are four 16 square models for the use of two red and two together, two black and in, together. You can not use one alone. Otherwise the current is not enough to carry the high power. 3. When the INVERTER is not in use, please turn off the inverter switch, so as not to