Review on 💡 200W Power Inverter DC 12V to 110V AC Car Converter: 2 AC Outlets, 4 USB Ports, Digital Display by Bill Snyder

I don't know if I have a defective one but it's bullshit. Wanted to use it in an RV to drive a small fan no more than 40w in height. The batteries in the camper are new, fully charged and reading 12.6 volts. When I connect inverter and fan, the display shows that the voltage drops. They slowly decrease by about 0.1 every 10 seconds until the fan turns off. However, the battery is fine and the voltage does not drop at all, which is monitored by a voltmeter. If I turn off the fan, the display shows the volts going back up to 12.6 or 12.7. I also plugged the iPhone 6+ into an outlet, the same thing happened and the display showed it was falling, I chose 12.1 to avoid damaging the phone. When separated, it rose again to 12.6. I am very angry as I need this for Labor Day weekend and now have to find an alternative. I also threw away the box and packing material like an idiot because with all the positive reviews I was sure everything would be fine. NOT a happy camper! Here is the fan I tried to start, it should work fine. https://www.amazon.com/Honeywell-HT-900-TurboForce-Circulator-Black/dp/B001R1RXUG/ref=sr_1_1?keywords=honeywell+ht-900&qid=1566966890&s=gateway&sr=8-1