Just to offer a contrary view from personal experience, I've been running an Edecoa 2500w unit (12V obvs) for about 4 years, no issues with it powering anything from low current devices like laptops/chargers etc with occasional travel kettle, toaster and microwave use. whilst id agree a lot of crap comes out of china, not all of it is rubbish. I did some due diligence research on this brand before I bought it and the tare downs indicated that this wasn't a bad bit of kit for the money.