DOXIN 500W Watt DC 24V to AC 110V + USB Portable Voltage Transformer Car Power Inverter

It seems to work well so far. Needs an adapter to use North American 110v connectors. I haven't put a full load of 500W on it yet, but it is unlikely I'll use it for more than 300W anyway. Users must know this model supplies a modified sine wave output, not a true sine wave, so it is not compatible with some appliances.One drawback is that it took over 3 months to arrive.