Lights Of America Informative - Compact Fluorescent Light Warranties
FREMONT, OHIO -- In the 3 months following the Live Earth concert last July, I replaced nearly 36 incandescents with 5 yr warranty compacts. In about 12 weeks, one blew-out. The warranty will not be honored unless you keep all of your receipts and keep a log of where you put each compact.
It is possible to have a faulty light fixture, but I do not believe that is my case, I just didn't keep the receipts.
None of the other compacts have failed, thus far.