I mean, is it an official name by Surefire? I can't find TW4 on Surefire website, only KL4 and L4 exists. I always have the impression that TW4 is a CPF term, and was wondering what does it means, hence, the purpose of this thread.
Also, I believe that Dan picked and tested the combos himself (someone can correct me if I'm wrong).
Why? Because not all of the KL4s work well with a single 123 battery. Of course, now that we have JSBurly's R123s... /ubbthreads/images/graemlins/naughty.gif