Actually in stock. Real 500W constantly. Clean sine for boilers and other equipment. Weight 8kg. How does it work and how is it different from a car inverter? 1. Here is a pure sine wave, the same as in your outlet, so boilers, pumps and any other sensitive equipment will work without problems. 2. Full automation of the process. We connected the battery to the uninterruptible power supply (this is important first), then plugged the uninterruptible power supply into the outlet and then the load into it (boiler, pump, phone charging, lighting, etc.) and that’s all, you can forget. It will automatically switch to battery operation when the lights are turned off, and will return to mains operation and begin charging the battery when the lights are turned on. 3. During operation from the network, it will act as a stabilizer. 13A west of the battery. There are also questions about the operating time, for simplicity you can consider this: with a consumption of 100 W * hour, you spend approximately 10A of the battery. In stock 500W12V (800VA) for 8500 UAH, there are also a few 300W12V (500VA) for 5500 UAH.
* Attention. Product description can be obtained by machine translation.