That shouldn't be a problem, right? I mean, even if the bulb is outside on the hottest day in the deserts of Arizona, it should still hover right around that 122 degree cutoff, yes? Well, maybe not. If your CFL is inside of a closed or poorly-vented light fixture, it could spell trouble for the longevity of your bulbs. While it's miniscule compared to incandescent bulbs, CFL bulbs do give off a small amount of heat. When they're used in a closed fixture or a fixture without sufficient ventilation, that small amount of heat is trapped and could fry your CFL bulb. The result is a bulb that burns out before its lifespan, wasting your time and hard-earned money.
(Images: Flickr member TF28 | tfaltings.de licensed for use under Creative Commons; Flickr member jonathan.youngblood licensed for use under Creative Commons; Rod Elliott, sound.westhost.com)