I believe its the only one that surefire approves of. Specifically, the one they sell. But, Mine runs quite a bit better on non LiFePO4 RCR123As. No issues yet. The K2s drop off and die much more suddenly. Non-LiFePO4 RCRs seem to taper off to a lower and more usable level giving me a bit of a warning, which I prefer.
I just got my EDCL1-T in today, I must say first impressions were great (until I turned it on)
Tried to replace the EDCL1-T endcap boot with a high vis one from Lumensfactory.
No luck removing the retainer ring. Never had that problem. Not even on the new E2T-MV Tactician.
could it be that Surefire started using loctite on them these days? I would really hate that.
Anybody else ran into that issue?