Beware, it's only a marketing company selling white label products under their brand. Their only expertise is in marketing, nice websites and packaging. The product quality is low (my inverter had live/neutral reversed), when I pointed that the brown wire was connected to the neutral, no reaction, when I setup the system it blew. I had to pay a fee for shipping a new pcb that I had to install myself. My appliances went crazy so I tested the frequency that oscillated between 150Hz-400Hz up to 1kHz... they rejected my measure at the socket and asked me to do it at the inverter which is very dangerous, first try arced and melted my probe! Of course the result was the same, but they kept asking stupid questions like if I set it up to 50Hz (as if there was an option to set up random dangerous High frequency). When I sent screenshots of all the parameters from the connected app, they asked me to make a video of the small lcd screen scrolling manually all 100 parameters. Since the video would be compressed it would be unreadable... Not sure if they are dishonest or completely incompetent, the result is the same: My investment is unusable for months so I have to buy a new one from another manufacturer while initiating a complaint to the authorities. In short: AVOID and buy the cheapest directly from the manufacturer, at least you can hope they would have better after sales and technical expertise.
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