I have a 400W Cobra inverter, it's pretty nice - two outlets on the front, cooling fan on the back, 30A fuse in the back too, has mounting tabs if you wanna permanently bolt it down (like I have done), and while it is recommended that you hard-wire it to the battery it does come with a cigarette lighter plug too. I think I got it for just $30 on sale, normally it's like $45 or so.