What is your favorite emittor to use in a C8?

You can see the archived poll results on the Wayback Machine:

https://web.archive.org/web/20221220093741/https://budgetlightforum.com/t/-/72756

Hey guys and gals its been all business lately and no play! So i thought i would ask the tough question of what emitter you prefer in your C8?

I have personally never seen a standard XPL or Nichia in a C8 so feel free to surprise me? I haven’t seen many people using the XPG3 i have 2 C8s with this setup.

Hahahaha I can not chose i like both the XPL-HI and the XPG3?

None of the above - XHP-50! :wink:

I like a little more spill with my throw. A XHP-50 in a C8 (with OP reflector) is just about perfect!

I have been thinking about building one. But my XPG3s get around 1700-1800 lumen. What driver did you chose?

It was a 17mm FET driver with zener mod. When it was built, the XP-G3 hadn’t come out yet. But, IIRC, a hard run XHP-50 can approach ~3000 lumens. I don’t have a way of measuring output, so I don’t know what that particular build actually did.

None of the above for me as well. Dedomed XPG2 is in mine.

Bob

XM-L2 U3 3D Color temperature: 4750-5000K :smiley:

Dedomed XM-L2 U4 1A

My 2 shell queens are a DDed XPG2 one that does 200k cds and DDed XPL V6 1D doing 155k cds, i also use a XPG2 based one( arround 200k cds too) on my .223 rifle

I just made a dedomed XPG2 (new style) C8 for my dad. A bit bigger hotspot than the old XPG2 and 167Kcd at 30s with stock lens.

DD xpg2 100%
A properly modified one can have great tint, around 1200 lumens, and around 150kcd.

Why would you choose any other emitter? The only category xpg2 loses here is lumens, but it’s hardly noticeable with 1700 and 1200.

But yea, for those that want flood and crazy lumens, then huge difference compared to a xhp to a xpg

Well there is always some compromise between output and throw when choosing emitters. It’s just a matter of what your priority is.

Top binned dedomed XPL can really throw a lot, as evidenced by mitko’s result above. So you get a larger hotspot (more lumens downrange) with almost as much beam intensity.

Some measurements of mine, to approximately illustrate the output difference:
old production style XPG2 S4 2B dedomed in C8 with stock lens: ~911 lumens OTF. This light does 185Kcd @30s.

dedomed XPL V6 1A in EE X6: 1692 lumens OTF. This light does 94Kcd @30s.

why not an XHP-35 for more throw ?

I’m sure this would be a popular choice, but it is a 12V emitter and there are not really any suitable drivers for it in the C8.

Also, it would not give more throw than a dedomed XPG2 or XPL.

Has a much bigger die (the yellow bit) surface.

I would have said dedomed Xp-G2, but I will not give 20+bux for a good led. So, now XP-L HI.

This

Does any one have the Kcd numbers for a C8 with a XPL-HI running direct drive? I would be expecting maybe 140-150kcd?

With XPL HI V2 3B, I measured mine to be around 107Kcd. With dedomed high bin XPL I have seen others measure 140-150Kcd.

Sweet thanks! That number sounds low do you think it could be the tint? Are you using AR lens?