I have previously used a 400w inverter on our boat via our 12v cigarette lighter plug, but I needed a more powerful inverter for some other applications. This has proven to be a good buy so far. The device itself looks very sleek and the digital I/O meters etc. are very handy to monitor performance while connected. Since my previous inverter often blew a fuse through the cigarette lighter, I will most likely mount this unit in a battery box for easy attachment directly to the battery using the supplied battery clips (also comes with the cigarette lighter). I'll definitely update this review in the future if I run into any issues, but so far this is a very solid purchase.