Would it work? I currently can't use just paper towel for a substrate as it is wayyy to hot, I have to use a combination of papertowel and cardboard on the hot spot and it is a pain in the ass. Would a standard lamp dimmer such as this work to drop the temperature a bit?
http://www.homehardware.ca/en/rec/i.../Ne-67n/Ntk-All_EN/R-I3673484?Ntt=lamp+dimmer
http://www.homehardware.ca/en/rec/i.../Ne-67n/Ntk-All_EN/R-I3673484?Ntt=lamp+dimmer