COURUI DO1 'Big Head' (Black/GRAY NOW AVAILABLE) $29.99 @ Gearbest ( use coupon: gbcourui) A long-throw modder's light!

567 posts / 0 new
Last post
garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

Thanks for the links. This is my first dedomed light.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
will34
will34's picture
Offline
Last seen: 5 hours 41 min ago
Joined: 12/18/2012 - 00:12
Posts: 4112

Quick question…

I have both of these LEDs ready to dedome and put in the Courui with a fet driver and copper heatsink, which one would you choose? I want best balance of CW tint, throw and output.

XM-L2 U3 1A 20mm Noctigon
XP-L V6 1A 20mm Sinkpad

FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU

TBH, I don’t think you’ll end up with a true cool white with either, after the de-dome.

I know it may vary somewhat, but from the few I’ve done, I’ll bet the XM will be cooler, but might lean to the green side, & the XP will will be a little warmer, & tend to the yellow side.

of course, YMMV.

Do both, let us know the outcome.

cajampa
Offline
Last seen: 5 years 5 months ago
Joined: 08/01/2014 - 01:55
Posts: 1963
Location: Sweden

If I where you i would chose the XP-L V6 1A dedome.

I did that in a DD Zeusray a while ago, the new XM-L2 U3 are almost impossible to get much over 5 amp, the XP-L can go to around 7A in a DD or MOSFET driven light with a strong high discharge battery + fully low resistance mods.

The amp estimated is for led’s with the dome on, i think you lose some of the top amp & lumens with a dedome, but the XP-L are said to lose less.

I liked the XP-L V6 1A’s tint after the dedome, more than the CW xm-l2 i have done before, non of that sickly green hue :Sp , but a yellowish NW but still CW tint, especially at distance it look more CW than close up.

will34
will34's picture
Offline
Last seen: 5 hours 41 min ago
Joined: 12/18/2012 - 00:12
Posts: 4112

Where can I get a replacement lens for my courui? Mine came today and it was in two pieces. Flat Stare

I won’t even bother contacting GB because the light itself took like 2 months to get here.

There’s a UCLp from flashlightlens.com at 73mm x 2.25mm. The stock glass is 72mm x 2mm, will it fit?

The dedomed XM-L2 U3 1A can throw pretty well but the tint is too green for my taste. I will replace it with a XP-L V6 1A in a couple days.

FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU
will34 wrote:
There’s a UCLp from flashlightlens.com at 73mm x 2.25mm. The stock glass is 72mm x 2mm, will it fit?

I think that’s the one Dale has used with good results.

I have several camera filter lenses on their way to me on the ‘slow boat’ to test in a few throwers, & will post before & after results when I get the chance.

cajampa
Offline
Last seen: 5 years 5 months ago
Joined: 08/01/2014 - 01:55
Posts: 1963
Location: Sweden

@will34, please try to measure somehow the difference in throw between the XM-L2 U3 1A & XP-L V6 1A.
Any detail would be very interesting, as far as i know from here no one have tested & reported on that yet.

My guess is that the XP-L should throw better because it can be driven harder & with more amp & and therefore should throw longer.

I have just been debating this in the Zeusray thread check out near the end, it hope you can add some insight in to any possible differences between the two options.

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

Ok I took my first lux reading ever last night and calculated throw at 118kcd.  This is with my dedomed XM-L2 U3 1A driven by (3) fully charged LG 4.35v cells with stock driver resistor modded for near direct drive performance (I measured 3.05A input current).  My emitter is up into the reflector as far as it will go and focus looks best at that point.  My meter is the HS1010 cheapie.  I was measuring "472" on the "x10" range at 5 meters.  Seems a bit low to me, but the light is really performing well!  What are others seeing with dedomed XM-L2's? 

-Garry 

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
Itinifni
Itinifni's picture
Offline
Last seen: 1 month 1 week ago
Joined: 11/03/2011 - 20:45
Posts: 792
Location: The Great Northeast, USA
garrybunk wrote:

Ok I took my first lux reading ever last night and calculated throw at 118kcd.  This is with my dedomed XM-L2 U3 1A driven by (3) fully charged LG 4.35v cells with stock driver resistor modded for near direct drive performance (I measured 3.05A input current).  My emitter is up into the reflector as far as it will go and focus looks best at that point.  My meter is the HS1010 cheapie.  I was measuring “472” on the “x10” range at 5 meters.  Seems a bit low to me, but the light is really performing well!  What are others seeing with dedomed XM-L2’s? 

-Garry 

I agree it seems a bit low. Two things I would do before messing with the focus, confirm the batteries in your meter are fully charged and take you measurements from a longer distance. I measure my throwers at 9 meters, if I had more room I’d go out a bit farther.

For reference my stock D01 measured 77.3kCd stock and 82.9kCd after resistance mods, both converted from 9 meters using an HS1010A. That was with the driver you’re using now in stock trim and the dome on.

I remember a time, when I searched for lights to fit my needs. Now I search for needs to fit my lights.

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

The batteries were the "heavy duty" ones that came with the meter and were never used until last night, but I'll try some fresh alkalines.  I did this in my basement, so I'm limited how far I can go.  I might be able to backup to 7 meters. 

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU

Something’s amiss if you are only measuring ~3A. Do you have any high-drain cells to compare with?

Even with the newer emitters you should be getting more than that.

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

I picked up one LG high drain cell. I'll have to charge it up though. I don't see why I need a high drain cell though. Even 2 reg cells should push 5 to 6 amps - especially 4.35v cells. Maybe it's an issue remaining from when I shorted the reflector across the emitter wires.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU

garrybunk wrote:

I picked up one LG high drain cell. I'll have to charge it up though. I don't see why I need a high drain cell though. Even 2 reg cells should push 5 to 6 amps - especially 4.35v cells. Maybe it's an issue remaining from when I shorted the reflector across the emitter wires.

-Garry

 Nightbird95 measured 3.62 Amps reading at the tail cap with batteries @ 4.13 volts, with the same mods as I, although he didn't say what battery he was using.

 I know I measured just over 4.5A from my setup with a fully charged 25R, with resistor bridged; The same cell, thrown into my A60 w/Nanjg-105 fet modded driver pulls ~5.5amps.

 Even though it's a FET based driver, I wouldn't be expecting big output like we are getting from the BLF-DD type FET drivers. 5-6 amps isn't going to happen with the stock Courui driver.

 

 

 

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

I managed to have a few minutes last night to take another lux reading, this time at 20 feet (6.096 meters).  I measured 3340 lux which calculates to 124kcd.  I was slowly moving the light around to check for the highest reading and it was really "touchy" as if the highest reading is only from the exact center of the beam.  A millimeter of movement and the reading dropped significantly.  (I suppose this is normal, especially with a dedomed emitter.)  I did not try other batteries in the meter; If I get chance I will and also try measuring at 24 feet (longest I can do in my basement). 

Charging up my high drain cell now for current measurement tonight. 

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU

Will be interesting to get an Amp reading from the high-drain cell.

pilotdog68
pilotdog68's picture
Offline
Last seen: 7 months 2 weeks ago
Joined: 05/30/2013 - 23:31
Posts: 6422
Location: Held against my will in IOWA, USA

Sorry if I missed it somewhere, but what exactly are the “leica m39 m42 adapter” being used for?

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

I used it to lock down the pill tightly to the "step" it rests on. Stock the pill is loose.  I'll try to upload a pic shortly. EDIT - sorry, pic I won't have access to the pic until tomorrow morning. I thought it was still on my phone. Basically, you thread in the pill all the way then thread that ring in against the pill. 

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
rexdog
Offline
Last seen: 1 month 3 weeks ago
Joined: 08/05/2012 - 07:12
Posts: 181
Location: Australia
pilotdog68 wrote:
Sorry if I missed it somewhere, but what exactly are the “leica m39 m42 adapter” being used for?

Here -
http://budgetlightforum.com/node/35418?page=1#comment-675578

Thanks to Go0se, I went down this path. Didn’t have to worry about threads.

fireball

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

Ok on LG HE2 I'm measuring 2.98A. On a protected Panny PF I'm only getting 2.51A. Perhaps I should just remove all my sense resistors and bridge the pads with solder.

-Garry. 

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

Took new lux readings at 23.0 feet (7.010m) with new fresh alkalines in the lux meter and now I'm getting 136kcd. For comparison a stock ZY-T08 is measuring 31kcd and a stock Jacob A60 at 31kcd (both of those on fresh cells).  They seem a bit low but I'd have to search and compare to others measurements.

 

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
Itinifni
Itinifni's picture
Offline
Last seen: 1 month 1 week ago
Joined: 11/03/2011 - 20:45
Posts: 792
Location: The Great Northeast, USA

Not sure what’s going on with your D01 but is sounds like your throw readings are going in the right directions. Your numbers on the T08 and A60 sound really low though, my A60 measured 74k stock and T08 was 77k stock.

I spent some time tonight trying to dial in my T08 focus a little better, initially made it much worse but after an hour ended up where I started.

I’m beginning to think I should just stop measuring amps and lux, just mod and if it’s brighter be happy. All this effort to gain 0.5 amps or 1k lux is taking all the fun out of this hobby.

I remember a time, when I searched for lights to fit my needs. Now I search for needs to fit my lights.

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

I even used the "max" mode of the meter this time (it was getting awfully hard to read those digits from 23 feet away).  My readings were also after 30 seconds. My T08 appears very bright and well focused by eye.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
rexdog
Offline
Last seen: 1 month 3 weeks ago
Joined: 08/05/2012 - 07:12
Posts: 181
Location: Australia

! photo P1000212_zps482sihrc.jpg!

pilotdog68 wrote:
Sorry if I missed it somewhere, but what exactly are the “leica m39 m42 adapter” being used for?

Here’s a pic showing the adapter ring to hold down a copper disc I made with no threading.
(I am having a bugger of a time getting good focus though) :~

fireball

pilotdog68
pilotdog68's picture
Offline
Last seen: 7 months 2 weeks ago
Joined: 05/30/2013 - 23:31
Posts: 6422
Location: Held against my will in IOWA, USA

So between this and the zy-t08, which one is the bigger pain to get a dedomed XP-L properly focused?

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Itinifni
Itinifni's picture
Offline
Last seen: 1 month 1 week ago
Joined: 11/03/2011 - 20:45
Posts: 792
Location: The Great Northeast, USA

Finished my D01 tonight.

I used a Star Momentary Q-Lite +8 from Mtn, XP-L V6 3C de-domed on a Noctigon XP32 MCPCB sitting on one of the big copper discs mentioned in one of these D01 threads. A UCLp AR Lens from flashlightlens.com, Omten lock-out switch and spring braiding round out the build.

A couple of things about this build had me about ready to give up. First, and not that bad, was the amount of filing I had to do to get the top of the copper disc flat. I just left my file in the vise and every time I had the time I went downstairs and filed away for 20 minutes or so.

Second and a real pain in the butt was getting the reflector where it needed to be. Even with the 32mm MCPCB the reflector still partially covers the solder pads.
I started by taking one of those bow tie shaped gaskets and cutting the wings off so it was perfectly round, it ended up the same diameter as the opening in the reflector. I then glued it down on the MCPCB.
I had to solder, re-solder and re-solder the wires repeatedly to get all the clearance possible, even with carful filing of the reflector.
When done I used the dremel to clean up and provide just a bit more clearance for kapton tape.

All the aggravation was worth it, the reflector sits right down on the MCPCB. It is the most perfectly centered, tightest beam I have ever seen.

Lux (converted from 9 meters and relative only to my measurements):
Before mod 77k
After mod 289k

I’ll have to wait until I get up to the lake to really see what it can do, no good open areas around here.

I remember a time, when I searched for lights to fit my needs. Now I search for needs to fit my lights.

garrybunk
garrybunk's picture
Offline
Last seen: 1 week 21 hours ago
Joined: 10/31/2011 - 09:25
Posts: 6099
Location: Johnstown, PA

Sounds great! So how many amps you pulling on which cells? 

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
NOTE: Now hosting my photos from my Google account. Post up if you can’t see them. Older photos hosted on Photobucket or Flickr may disappear (PM me if you want access to them).
Itinifni
Itinifni's picture
Offline
Last seen: 1 month 1 week ago
Joined: 11/03/2011 - 20:45
Posts: 792
Location: The Great Northeast, USA
garrybunk wrote:

Sounds great! So how many amps you pulling on which cells? 

-Garry

I haven’t checked yet, I need to rig something up again so I can check with multiple cells. The cells I used for Lux measurement were protected Panasonic NCR18650Bs that I bought for this light. Three in parallel should have no problem providing 6A so no need for high output cells with this driver.

I remember a time, when I searched for lights to fit my needs. Now I search for needs to fit my lights.

tatasal
Offline
Last seen: 5 hours 36 min ago
Joined: 02/15/2012 - 08:40
Posts: 5657
Location: Far East

This light is part of Gearbest’s Ist anniversary sale. For a limited time (until March 31st), the price goes down to $27.99.
Edit: and the Opus BT-C3100 v2.1 is now @ $36.78 only (among other items)

http://budgetlightforum.com/node/38322

FmC
FmC's picture
Offline
Last seen: 9 months 1 week ago
Joined: 03/31/2013 - 05:23
Posts: 2197
Location: Brisbane, AU

 I've bought half a dozen of these lights now, all from GB. The first couple were for myself, & the rest have been for friends. All lights purchased with a view to modding.

 Latest one arrived today; The build quality on this one was pretty bad... Everything that could be loose, was loose.

Lens 'o' ring too small, & poking out between lens & bezel.

LED Dome dirty & damaged.

Shelf no longer screws in tight, threads not deep enough, so it just spins.

Gouge marks at the top of the battery tubes, as if the chuck of the machine had gone too deep, leaving some nasty jagged burrs to tear up your cell wrappers...

 It let the magic smoke out almost straight away; The centering ring was so thin (less than 0.5mm), that tightening the bezel slightly shorted out the reflector on both LED wires. The + wire heated up, & came off at the driver pad.

 

 

This one was definitely a 'Friday' light....

MRsDNF
MRsDNF's picture
Offline
Last seen: 3 months 3 weeks ago
Joined: 12/22/2011 - 21:18
Posts: 13473
Location: A light beam away from the missus in the land of Aus.

Thanks for the update FmC. Lets hope the crap copies have not started but it sure looks like it.

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Pages