BAM
![](http://thumbs4.ebaystatic.com/d/l225/m/mS7rsnQvx7yvsVrTorXi5oA.jpg)
I would not use this as a cruise control device, in a pinch you may forget to turn down, its not like you can tap the brake to turn off. I do like the idea of using this when your stationary to boost up idle, say for on board air, or an on board shower, on board welder to bring amps up on alternator