M@g 2C quad XPG

[ergotelis]

you are right hill, when i will have the regina reflectors i will post side by side beamshots with mcr20,regina,derelight xpg and anything else interesting if i have.

 

[Hill]

you are right hill, when i will have the regina reflectors i will post side by side beamshots with mcr20,regina,derelight xpg and anything else interesting if i have.

That would be very helpful indeed. There is also a thread discussing best XPG reflectors/optics here. Maybe you could post your results there as it seems to fit well with that thread and put a link in this thread, or vice versa.

I have a Quad XPG using Downloads reflectors and a Triple XPG using LXP optics
Would that be a fair comparison ???

Probably not this best since they are not equivalent in output, but would still be worth it to at least get an idea of throw between the two.

 

[tx101]

I have some Regina reflectors on the way as well, hopefully
I'll get them sometime this week.
Then we can get some proper comparsion beamshots done :D

 

[Hill]

I have some Regina reflectors on the way as well, hopefully
I'll get them sometime this week.
Then we can get some proper comparsion beamshots done :D

Now you're talking! Finally a fair head-to-head! My reflectors from Charles are on the way (hopefully in my mailbox at home).

 

[Crux]

Any comparison beam shots yet?

:whistle:

 

[Hill]

haven't heard - maybe txt101 could chime in?

BTW, I've since modified this light again, swapping the LXP optics for Download's XPG reflectors.

 

[tx101]

I heard my name being called ? :D

Excuse me for totally forgetting about this :ohgeez:

I quickly took some beamshots on a whitewall with my "point and click"
camera

Download's 20mm OP reflectors

Ledil Regina reflectors



Both lights see 1.4A for each emitter

The Download light has XPG R5 "WH" emitters while the Regina light has
XPG R5 1C emitters supplied by Cutter

I am not going to comment on which is brighter since the two lights
use different emitters

To my eyes, the Regina reflectors produce a tighter and marginally more
defined hotspot, whereas the Download reflectors produce a more
smoother beam with a bigger hotspot.

To be honest there is not much to pick between the two when it comes
to beam quality. I would be really splitting hairs to say which one is better
than the other in terms of the beam produced by both reflectors

If we put aside beam quality something that should be considered is ease
of installation. Download's reflectors center perfectly just by the pressure
of the bezel/lens tightening down onto the reflectors but because these
reflectors are metal, there is a chance that they cause a short if the bezel
is tighten down too much.
The Regina reflector are made from plastic so no worries about shorts.
They do not center as nicely as the Download ones and also require
"fitting" so that the legs of the reflectors sit in the holes on the MCPB.

I know that I said that I was not going to comment on which light is
brighter ...... but from what I understand, a smooth reflector will have
less optical losses therefore it should be brighter (please correct me if Im
wrong) The Regina is a smooth reflector :D

 

[tx101]

A couple of more beamshots

Quad XRE R2 @ 1000mA per emitter with McR19XR reflectors

Download on the left
Regina on the right

 

[ma_sha1]

How are these reflectors compares to your other <Mag with triple LXP optics?

I sold my Triple LXP a while ago, I still remember the snow white beam when paired up with the Kai domain XPG R5, never seen anything quite like it,
when I put the same XPG R5 in OP reflector, it's not as snow white.

 

[rekd0514]

I am curious if it is possible to do 4 xpg r5 in a square sitting directly next to each other? You could then use a single large reflector for the light.

 

[Hill]

I am curious if it is possible to do 4 xpg r5 in a square sitting directly next to each other? You could then use a single large reflector for the light.

That type of setup would produce mostly flood since the emitters would be relatively far apart. One would need a huge reflector to produce any amount of reasonable throw. Better to use an MC-E or P7 if you want a quad emitter.

 

[rekd0514]

That type of setup would produce mostly flood since the emitters would be relatively far apart. One would need a huge reflector to produce any amount of reasonable throw. Better to use an MC-E or P7 if you want a quad emitter.

Far apart? They would all be as close as they possibly could be to one another. It doesn't seem like it would be any different than a MC-E or P7 just with 4 leds all in the same area taking its place. The R5 emitters have longer throw normally anyways, so it seems like if you could place the reflector correctly it would be an awesome setup. You would have tons or brightness, flood, and throw.

 

[Hill]

Far apart? They would all be as close as they possibly could be to one another. It doesn't seem like it would be any different than a MC-E or P7 just with 4 leds all in the same area taking its place. The R5 emitters have longer throw normally anyways, so it seems like if you could place the reflector correctly it would be an awesome setup. You would have tons or brightness, flood, and throw.

I understand they would be as close as possible, but even then, the emitters are much further apart than an MC-E or P7 quad based die. See here for size comparison of XPG "Linger" special, MC-E and P7. True, a quad XPG setup with emitters close together would produce more output than either MCE or P7, but the beam would likely be flood.

 

[rekd0514]

I see what you mean now. Cree should combine 4 R5 like a P7 is and call it an R8. :D

I guess we won't know what the quad R5 beam could truly look like unless someone tried it.

 

[tx101]

How are these reflectors compares to your other <Mag with triple LXP optics?

I sold my Triple LXP a while ago, I still remember the snow white beam when paired up with the Kai domain XPG R5, never seen anything quite like it,
when I put the same XPG R5 in OP reflector, it's not as snow white.

Maybe Hill can comment on whether using the LXP or the Download reflector
makes any difference to the tint of the beam that our eyes see

What I can say, is that the overall size of the beam from the LXP is half
the size of either reflectors.

 

[ma_sha1]

Maybe Hill can comment on whether using the LXP or the Download reflector
makes any difference to the tint of the beam that our eyes see

What I can say, is that the overall size of the beam from the LXP is half
the size of either reflectors.

Thanks. I still have one LXP & thing about putting into an EDC,
so the LXP still has the tightest spot then, given the same lumen,
thus translate into more throw than the reflectors?

thanks

 

[tx101]

Thanks. I still have one LXP & thing about putting into an EDC,
so the LXP still has the tightest spot then, given the same lumen,
thus translate into more throw than the reflectors?

thanks

Only one way to find out ..... build it :twothumbs

 

[tx101]

Ive been busy again :D

Just finished building this one

quad XPG R5 32mm board wired in series

purchased from here

http://www.candlepowerforums.com/vb/showthread.php?t=265294



The emitters are powered by a Maxflex 3 I found in my spares box

The heatsink was machined by member TallHairyDave (cheers mate)


And before you all ask, here is a beamshot taken about 1 foot away from
a white wall

The emitters sit behind 8 degree optics which give an even smoother
beam than the LXPs or Download reflectors. It is what I would describe
as a very floody beam.
BTW these 1D tints are a very nice cool white with no hint blue or green

 

[Hill]

So, how many of 4 XPG mods do you have now? Three? Four? They put out a great deal of lumens for a C-sized packaged.

I like the optics you used. Those LXPs were a pain to get straight while screwing down the bezel. Even the reflectors with centering rings wobbled a bit until the lens was pressing firmly against them.

How about a peak under the hood of that light? Or is it too much trouble to disassemble?

Thanks for sharing! Another great txt101 build!

 

[simplec6]

Very cool build, I will be attempting a similar build soon with XML's.

Would you mind sharing what that tool you are using on your DeWalt drill to bore the body is and where to buy/make?