I would feel safer using a Lutron dimmer rather than that piece of junk.

Spend $30 more for a Ranco or a Johnson Controls and DON'T cook your snakes. It's worth the extra money for the peace of mind. It also helps knowing your house won't get burnt down..

If a JC or a Ranco shorts out, they shut OFF. If a cheaper "thermostat" fails, they generally get stuck in the ON position.

Flexwatt melts and can cause fires when uncontrolled.