Anybody Used One Of These Inverters?

[Cham13]

I know this is cheap but I only need one for odd times as my van is more a day/over nighter and at most I will plug a 700W toaster into the 240V socket.

https://www.amazon.co.uk/MayaTech-H...qid=1520836067&sr=8-7&keywords=1500w+inverter