Re: Cheap C123\'s in the U.K??
Without a doubt, Duracells are better than Panasonics. My performance observations were from doing a rough-and-ready runtime test on my McLux 1 cell/1 watt. From a sample of about 3 each of the Surefire, Duracell and Panasonic, the Panasonics gave a pretty consistant 20 minutes less runtime. Duracell and Surefires gave pretty much the same times, but switching to an incandescant (E2e with MN03), the Surefires gave a whiter beam.