I’ve got the L8 and the M3-C light in front of me now. I like both but the L8 is not a carry light. Would it be possible to build a new light with the L8 26800 tube and tail, M3-C head, 25 amp driver and use the SFH55 LED? And of course with the optional stainless steel bezel. Another idea same set up with a quad XHP-50.3 LED.
7070 sized emitters are somewhat overkill for 21700 tube lights. They will step down and be thermally throttled very quickly. A bit more thermal mass around the head is required.
The slightly larger S21D 4x519A is pretty close in performance to the FC40 in much larger M21 series lights, so maybe consider that.
Hmm I see. Well. Thanks for answering guys. I just received a S21D with the 219b and I’m loving it! Best tint I own! But out of curiosity I really wanted to try the new FC40 in 1800-2000k but I don’t want a S11. Guess I’ll be going for the M21B. It is slightly larger than a S21A but not as thick as the S11. Also much more eye pleasing.
If you really like that S21x sized GT-FC40, built one yourself. S21B takes suitable driver. Only thing you need to do, is to enlarge the reflector hole. You need to source 7070 centering gaskets from some other source. I know there’s 7070 gaskets for 9mm hole available (if Convoy sells S21x reflector with 9mm hole these are direct fit) and Simon probably could sell you his 10mm centering gaskets.
Ohh that’s way above my paygrade skill wise haha. I’ve tried to modify some lights, although successfully, it was a pain. I have a Texas Ace Narsil L6, a 70.2 converted BLF GT. I really want to change that 70.2 to a 70.3 HI. But I’m afraid to do a emitter reflow.
Reflowing usually becomes the simplest part once you get some practice. Just practice a little with something cheaper than xhp70. Feel free to contact me if you want some tips or just chat about flashlight modding.
I’m looking at mode specs for the T4, specifically the low-high max 50% group.
“sub-option 1.9 (normal-flash 9 times) : tap the switch to select mode group 9 (1%、10%、50%)”
Whereas on other biscotti-like 12/13 mode lights, this is the corresponding description:
“sub-option 1.8 (normal-flash 8 times) : tap the switch to select mode group 8(0.1, 1, 10, 50)”
The discrepancy in index is due to another mode being slipped in. But where is 0.1% mode? Is that removed from the t4?