I've heard folks recommend dimmers at Home Depot that sell for under $10. Any particular brands?

I've got a couple of the Zoomed UTHs that I need to get down to about 90F. (Without the dimmer they go up to 110! Good thing I'm getting my enclosures set up BEFORE my BPs arrive . . .) I've used the Zoomed rheostat with my boa and it works great, but if there's something else out there that is much cheaper I'll go for that.

Thank you!
Payton