Wanna-Mod A Fenix L1T. Got Knowledge?

Howdy, all,

I’m just tired of looking at these incredibly expensive yet uselessly dim Fenix L1T flashlights collecting dust in a drawer and would like to upgrade the LED. They were never really “worth” what I paid for them, so I doubt I could stand to sell them. Sux to B Me, I know…

I (sorta) like the UI, so I don’t mind using the existing driver IFF the High-Low twist can be maintained.

I know the “State-Of-The-Art” when these were new is a miserably dim distant memory now, so no need to leap to defend Fenix’s honor. It’s just that each of these cost more than the total of all the lights I’ve EDC’d since them. Not “Budget” by any estimation.

No need to recommend an emitter. They’re all too dim and that’s the last thing I need. After much consideration and experimentation, I really don’t want an XM-L, with its weird colors, although I’d love to get the output of an XM-L but in the original reflector and have all one color OTF. To me, within my reach now, that means XP-G2. They’ll handle the Vf and (reported) ~.7A the Fenix will feed them, so that’s sorted.

What gets me stuck is that pill. I get that the key to the UI is, there are essentially 2 paths to Ground. There are 3 wires, obviously for implementing the twist-dim feature.

And the LED is the old style in a plastic “boot”, not a heatsink. I can find the plastic-boot LEDs still being sold, but I can’t trust their exaggerated output claims; and I really want Maximum Output so I don’t have to keep making excuses for the upside-down Cost-Benefit Analysis on these … things.

Questions:

So has anyone here installed an XP-G in a Fenix L1T? Did you need to un-flow the LED from the board it came on (and then what)? A 16mm heatsink fits the socket in the pill, but would a 12mm or 14mm disc still mount & leave room for the Green wire? Or did you have to make a hole for it? Did you keep the flappy disc that the wires and LED are soldered to? Did you take pictures?? I’m sure I’ve forgotten to include some important questions…

Thank you in advance for any experience(s) or knowledge of modding a Fenix L1T you’d care to share. Fenix should thank you too, because you’ll be helping get these back in the public eye.

Dim

I put a 219b on a 10mm board into my old L2D. Just removed the Cree XRE and its board and put the new one in its place. The L1T uses a 3W Luxeon, but I think it works the same. You might need to use a spacer to get the new LED to fully stick out into the reflector; I didn’t and it ended up only half in it.

Unfortunately, when the L1T was made, there was no Cree option, so it’s designed around this form factor:

IDK what y’all call that brownish lump under the LED, but it seems to have a wee reflector built in, and seems to be made of some sort of plastic.

I’m working up my nerve to ‘break’ a fully working (even if embarrassingly dim) flashlight, but when I do, I’ll take pictures for anyone else who may come along wanting to get their money’s worth out of this torch.

10mm?? That should fit! Thanks!

I have modded a Fenix P1D and L2T from Luxeon, To Seoul SSC and to Cree XP-G, keeping up with technology. The only hard part was getting them open, you will need a 8-10 mm mpcb

I might have taken pics and posted on CPF way back before BLF was created, i can open it up for you to see during the weekend…