I agree with the last guy. EVERYTHING that I have put into an attic technology wise has broken pre-maturly. Look at those heat ratings on the product. It shoudl say something about operating up to 130 deg farenhite (max). Then try going up to your attic on a summer day. I went up to mine today (I'm in Boston now and it's only 60 outside) and the attic was WAY over 110 deg, probably much hotter than that.
BEN