Very cool yes that is pretty much exactly the same thing. Infinite control translates to phase cutting device of some kind (thyristor, triac or some such). That one has a switch though (I dont have a 220 switch to put in mine so I just use the unplug method). Nicer heat sync as well on that one. I saw those project boxes at home depot, dont remember how much they were. Fhilo might be able to get a good deal on them... I see the one in your link also has the dryer plug option. Nice! Easy to come by cords at the scrap yard...