One of the most beautiful beams I've ever seen was my Surefire M6 with LumensFactory IMR-M6 driven by 3 Keeppower 16650's. Absolutley [FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]gorgeous.
Compared to my Fenix TK47UE, the M6 crushed the 1000 lumen mode of the Fenix, requiring me to pump up the lumens to 3200 before the M6 was obviously outclassed.
Stock Surefire lamps and primaries are cool and all, but with the abundance of Lithium ion cells, Lumensfactory lamps, and bi pin adapters that take cheap bulbs, I don't see much point in burning up old, valuable, discontinued Surefire Lamps with expensive lithium batteries when there are other options that are brighter, whiter, cheaper, and higher performing. Which is why my Surefire lamps have pretty much been retired for the most part. No real reason to use them other than maybe nostalgia.
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