znomit
Enlightened
One that uses an XP-E!
Reflectors for XP-G: Post your tests here
- Thread starter ergotelis
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One that uses an XP-E!
JamisonM
Enlightened
A maglite's does pretty good. In fact, it's just as good, if not better then a Seoul P4 even with the larger die.
TorchBoy
Flashlight Enthusiast
Your pic is pretty clear. :thumbsup:
Justin Case
Flashlight Enthusiast
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- Mar 19, 2008
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Sadly, my digital camera is being repaired so I don't have any beam shots. So boring text descriptions and measurements will have to do.
I recently built one AW Seoul focus tower with an XP-G R4 bin from nailbender. The XP-G came on a 10mm round MCPCB, so I had to grind it down to fit. I had an SOB1227 buck driver available, so that's what I used. The SOB measured out to 1196mA drive current. I filed down the MCPCB thickness by 0.4mm to match the XP-G die height with that of a Seoul P4.
Compared the tower to two other towers: 1) AW Seoul focus tower with an SOB1000 and a Seoul P4 U2SWOH-bin LED, and 2) AW Seoul focus tower with an SOB1000 and a 2S2P Cree MC-E K-bin (mounted on an 0.7mm shim to raise the MC-E die height).
Results:
The XP-G focuses to a very bright, tight hot spot. Also, the XP-G spill at the beam midpoint measured 145 lux in the SRTH, compared to 70 lux for the P4 tower.
I also made some 1 meter lux measurements using a KT4. Host was a SureFire M900A weaponlight. Power source was 3xAW16340. Test towers were 1) P4 U2SWOH/SOB1000, 2) 2S2P MC-E K-bin/SOB1000, 3) 2S2P MC-E K-bin, SOB1227, and 4) XP-G R4/SOB1227.
I also built another XP-G tower using the Netkidz tower kit instead of an AW Seoul focus tower kit. I didn't have a good 17mm buck driver handy (waiting for my KD1640 order), so I used a single-mode, 3xAMC7135 driver (1050mA nominal). Seems to work very nicely and the focus height looks good without having to file down the 2mm thick MCPCB. The XP-G again was on a 10mm round MCPCB and I trimmed it down to size.
Hot spot lux at 1 meter was 14400 for a T-62 TH, 13500 for a KT1, and 18600 for an SRTH. Host was a SureFire 6P running 1xAW17670. Tail current draw was 1.042A. For comparison, the numbers for the AW tower running at 1196mA were all slightly higher at 15100, 14200, and 20300, respectively.
Lastly, I have a Moddoo triple XP-G, using a single mode, 6xAMC7135 two-board sandwich driver. Triple XP-G R5 on a 20mm star is from Cutter. Optic is a Carclo triple XP-E narrow clear #10507. The resultant beam is less tightly focused than for my XP-E triple (identical heat sink, driver, optic, and 20mm triple MCPCB). I need to make some measurements to quantify how much larger the hot spot is vs the triple XP-E.
I recently built one AW Seoul focus tower with an XP-G R4 bin from nailbender. The XP-G came on a 10mm round MCPCB, so I had to grind it down to fit. I had an SOB1227 buck driver available, so that's what I used. The SOB measured out to 1196mA drive current. I filed down the MCPCB thickness by 0.4mm to match the XP-G die height with that of a Seoul P4.
Compared the tower to two other towers: 1) AW Seoul focus tower with an SOB1000 and a Seoul P4 U2SWOH-bin LED, and 2) AW Seoul focus tower with an SOB1000 and a 2S2P Cree MC-E K-bin (mounted on an 0.7mm shim to raise the MC-E die height).
Results:
Code:
Lux at 1 meter
Emitter/TH SRTH T-62 KT1/2 Itail (A) Vf (V)
P4, U2SWOH 14000 11100 10800 0.49 3.40
MC-E K-bin 9500 7200 7800 0.82 6.22
XP-G R4 20300 15100 14200 0.58 3.28I also made some 1 meter lux measurements using a KT4. Host was a SureFire M900A weaponlight. Power source was 3xAW16340. Test towers were 1) P4 U2SWOH/SOB1000, 2) 2S2P MC-E K-bin/SOB1000, 3) 2S2P MC-E K-bin, SOB1227, and 4) XP-G R4/SOB1227.
Code:
Emitter KT4 lux at 1 meter
P4 9900
MC-E SOB1000 8900
MC-E SOB1227 9900
XP-G 13400Hot spot lux at 1 meter was 14400 for a T-62 TH, 13500 for a KT1, and 18600 for an SRTH. Host was a SureFire 6P running 1xAW17670. Tail current draw was 1.042A. For comparison, the numbers for the AW tower running at 1196mA were all slightly higher at 15100, 14200, and 20300, respectively.
Lastly, I have a Moddoo triple XP-G, using a single mode, 6xAMC7135 two-board sandwich driver. Triple XP-G R5 on a 20mm star is from Cutter. Optic is a Carclo triple XP-E narrow clear #10507. The resultant beam is less tightly focused than for my XP-E triple (identical heat sink, driver, optic, and 20mm triple MCPCB). I need to make some measurements to quantify how much larger the hot spot is vs the triple XP-E.
Justin Case
Flashlight Enthusiast
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The stock smooth Mag should work very well. I haven't made any measurements yet on one, but here's an extrapolation.
The SureFire SRTH with an SSC P4 tower measures about 14,000 lux at 1 meter for my lux meter. The same SF TurboHead with an XP-G R4 tower measures about 20,300 lux. A stock smooth Mag reflector with a P4 measures 19,000 lux. Thus, assuming that the Mag reflector with XP-G R4 will hold the same lux ratio as for the SF SRTH, we get about 23,500 lux at 1 meter. Presumably even more lux if you use an XP-G R5.
I'm trying to build a project piece around a budget and have been testing different optics in the $2-6ea range. I would love to find something better than the lxp/cxp for tight hotspot. They do ok but don't quite have the throw I'm looking for compared to a xpe in it's place. These $18-20 reflectors are to much =]
Anyone else know of some xpe optics I can try in that price range? I'm not so much limited by size and have almost all of the optics cutters offers laying on my bench.
Anyone else know of some xpe optics I can try in that price range? I'm not so much limited by size and have almost all of the optics cutters offers laying on my bench.
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longleg
Newly Enlightened
Anyone try XP-G w/MC-E optics?
And Boom-SS in particular.
My rationale is this:
If XG-G w/XP-E optics creates wider beams, because the XP-E has a smaller die, then XP-G w/MC-E optics might create a narrower beam, since the MC-E die(s) are bigger..?
If XP-G + BoomSS would create a similar beam as on the MC-E but with a little better throw/narrower spot, I am sold.
Posted here too:
http://forums.mtbr.com/showthread.php?p=6309684
And Boom-SS in particular.
My rationale is this:
If XG-G w/XP-E optics creates wider beams, because the XP-E has a smaller die, then XP-G w/MC-E optics might create a narrower beam, since the MC-E die(s) are bigger..?
If XP-G + BoomSS would create a similar beam as on the MC-E but with a little better throw/narrower spot, I am sold.
Posted here too:
http://forums.mtbr.com/showthread.php?p=6309684
znomit
Enlightened
Re: Anyone try XP-G w/MC-E optics?
The Booms are stippled to blur out the cross between the MC-E dies. They will also blur the size of the XPG beam.
I think there are height differences too between MC and XP so getting the optic positioned just right will be tricky.
The Booms are stippled to blur out the cross between the MC-E dies. They will also blur the size of the XPG beam.
I think there are height differences too between MC and XP so getting the optic positioned just right will be tricky.
ergotelis
Enlightened
Re: Anyone try XP-G w/MC-E optics?
I tested a boom SS it doesn't look that good. But it is not that bad too.
I tested a boom SS it doesn't look that good. But it is not that bad too.
longleg
Newly Enlightened
Re: Anyone try XP-G w/MC-E optics?
I think it looks quite promising - pics by Troutie in the thread I linked to above:
w/Carclo 10417
w/Boom SS:
I think it looks quite promising - pics by Troutie in the thread I linked to above:
w/Carclo 10417
w/Boom SS:
TorchBoy
Flashlight Enthusiast
Re: Anyone try XP-G w/MC-E optics?
... described by Cutter as "Tight Narrow" but not so tight or narrow with an XP-G.
Re: Anyone try XP-G w/MC-E optics?
But it isn't really all that tight to begin with even with the xp-e is it? The real spot for the lxp/cxp are both quite a bit tighter than the carclo.
But it isn't really all that tight to begin with even with the xp-e is it? The real spot for the lxp/cxp are both quite a bit tighter than the carclo.
ergotelis
Enlightened
Re: Anyone try XP-G w/MC-E optics?
Oh i just saw that you were talking about a Boom SS for a MC-E. I have a Boom SS for P7. Though hotspot is not that good like an MCR20s....
Oh i just saw that you were talking about a Boom SS for a MC-E. I have a Boom SS for P7. Though hotspot is not that good like an MCR20s....
AlexGT
Flashlight Enthusiast
Re: Anyone try XP-G w/MC-E optics?
I tested the XP-G R4 in a Fenix P1D Luxeon version that had a SXOH Lux I and the beam is very nice, it still keeps a nice hotspot but the spill is way brighter I would say that it appears to be twice as bright as the Lux I.
I used a R4 with 8 mm board from nailbender and the fit is perfect.
AlexGT
I tested the XP-G R4 in a Fenix P1D Luxeon version that had a SXOH Lux I and the beam is very nice, it still keeps a nice hotspot but the spill is way brighter I would say that it appears to be twice as bright as the Lux I.
I used a R4 with 8 mm board from nailbender and the fit is perfect.
AlexGT
Justin Case
Flashlight Enthusiast
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For AA Mini Maglite mods, the Fraen LP optic produces a poor quality beam with lots of defects. The stock smooth AA Mini Maglite reflector also gives a poor beam with many defects.
Sooo.....I'm at the point where I'm ready to build a multi XP-G light. I have the emitters in hand (Thank You R@ndom) but I'm trying figure out which reflector or optic to buy.
Is the consensus that the McR20S is the best overall option? DaFrabicata's beamshot of it looks really good.
Thanks,
Greg
Is the consensus that the McR20S is the best overall option? DaFrabicata's beamshot of it looks really good.
Thanks,
Greg
AlexGT
Flashlight Enthusiast
I now put a XP-G in a Fenix L2p luxeon version and it gives a nice round beam, a bit more floodier than the luxeon it replaced but still puts out about twice the light that the original.
I had to raise up the 8mm board using a copper disk and sanded down the reflector lip to get proper focus but it was worth it.
AlexGT
I had to raise up the 8mm board using a copper disk and sanded down the reflector lip to get proper focus but it was worth it.
AlexGT
For a spot? No, LXP RS and CXP RS are both better
The mcr20s sits in between a spot and a medium optic for the hotspot but has that nice reflector spill
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olrac
Flashlight Enthusiast
I beg to differ, the McR20S has a great hot spot, like any reflector the led has to sit in the correct focal point range.
@ 48" from wall (that is a pretty tight hot spot)
yard shot ( good hot spot and good spill)
the XP-G is mounted on a 20mm star and the reflector sits directly on the PCB board, sweet! as in sweet spot!
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