Just a heads up, these are normally closed, 85F thermodiscs with a 15F dead-band

IMHO perfect for over-temp protection with HID and T5's

Not really for the shade-tree electrician though.... might take some experimentation to find the best mounting location for reliable and safe operation. Each specific application could be different.

http://cgi.ebay.com/2-Thermodisc-The...item5d26bb3e80

Av