how many lumens from a Triple XPL Sinner

LED Flashlights – General Info 18650 Flashlights
1

I built a Sinner a few weeks ago, with XPL-V6-3C 4750-5000k triple XPL's on a 20mm Noctigon star, with an mtn17dd/guppydrv rev2 driver and xpl modified carclo 10507 optic. This isn't my first nor is it my last triple tuber, but I got 12.3A at the tailcap with my clamp meter, bypassed with a piece of 14ga Turnigy wire, using a fresh charged VTC5.

I have looked at the emitter test results done by Match several times. I have been using it as a general rule of thumb for rough lumen range of new builds. Is there a better way to roughly determine how much light the emitters are putting out? Raw lumens number, and a 10% loss through a carclo 10507 xpl modified optic for OTF numbers?

Honestly I'm just looking for a reasonable number I can use for bragging rights. This is the highest amp draw I have had from any light I've built yet, others not far behind ranging from 9A with xpg2's to 11.X A with xpl hi's, and usually somewhere in between there.

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3000ish would be my guess, slightly more at start-up, with a good cell, of course.

3

Are they regular XP-L’s or HI’s? Assuming regular XP-L, and using” Djozz’s chart”:Cree XP-L V6 2C led, tested against XM-L2 T6 3C, edit23/7: I repeated the test and measured a dedomed XP-L, at 4amps per emitter we get about 1500 lumens per emitter. Estimate 15% losses for the optic = 3800 lumens Now we know normal XP-L’s can’t fit under a carclo optic, so we need to adjust.

3800 lumens.
If dedomed, subtract another 20%
If HI’s, subtract another 15%
If carclo optic was modded subtract maybe 5-10%.

If I were bragging I would be comfortable saying 3500 estimated at start-up

This isn’t very scientific, just how I think through it.

4

Regular XPL's, and the 10507 optic was richardified for the emitters to fit.

sorry for quoting match as the chart maker, it was djozz! Don't know how I got them confused!?

looking at the chart, 4.1A to each emitter would be around 1575 lumens per emitter.

1575x3=4725 lumens

deduct 20% for total modified optic losses= 945 lumens lost through the optic for

3,780 lumens OtF.

That has been my best (semi-educated) guess. I don't think I'm overstepping too much by telling friends that it is close to 5,000 lumens, with the added explanation that there is light lost through the optic unaccounted for and that's at startup, with the voltage and current dropping at an exponential rate.

Another question I have is, how could anyone say that an xpg2 or nichia could possibly compare in terms of light output with an xpl at any relative current? That one is beyond me, but it came from a guy who's knowledge of flashlights was something I had held in high regaurd, and I can't understand it and all my google-fu is saying it's not even remotely true.

5

XPG2 has a smaller die than XPL so it will have a more focused and brighter hot spot with less spill. The overall light output will be less, but your eyes will see the difference in the hotspot more. Making it seem brighter. I’ve experienced this myself when I swapped out the xml2 from my convoy s2 to an xpg2. Tighter spot, more throw, seems more intense to my eyes.

6

at 10A (30Q) my A6 with xp-l hi does 3200lumen
at 6.5A (18350) its 2400

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The thing with modified optics is that the loss is HUGE, Dale tested this in one of his quad mods and there is a big difference in output when using XP-L + modified optics vs. XP-L dedomed + normal optics.

My Sinner Cu used to have a modified optic and the output was below 2,000 lumens at 9.4A. Then I switched to XP-L HI and saw over 2,600 lumens at 9.2A. It also throws several times better and doesn’t get hot as quickly. When using the modified optics the light is scattered around and not projected forward, making the light get hot.

These lumens figures are “OTF” approximate and taken via ceiling bounce in a small bathroom.