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

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DavidEF
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JeffN wrote:
JeffN wrote:
Ordered a black Courui on October 7th, paid for tracking, light was shipped Oct.10, tracking was refunded Oct. 21, still waiting for the light to arrive…

And the mail lady just rang the door bell and handed me the light. “Is this the package you’ve been waiting for?”

Timing, it’s all in the timing.


I think the mail lady must be reading BLF.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

tatasal
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DavidEF wrote:
JeffN wrote:
JeffN wrote:
Ordered a black Courui on October 7th, paid for tracking, light was shipped Oct.10, tracking was refunded Oct. 21, still waiting for the light to arrive…

And the mail lady just rang the door bell and handed me the light. “Is this the package you’ve been waiting for?”

Timing, it’s all in the timing.


I think the mail lady must be reading BLF.

haha, and not the ‘other side’ !

JeffN
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Smile

Carpe noctem

Tom E
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Werner wrote:
Why did you order this particular exemplar of the ring? Are there any differences other than the price?

The original link was eBay of UK - dunno how to order from there - my regular eBay account doesn't seem to work. So, searched regular eBay.com and found those other listings. I'm hoping they are all the same - seem to be. Not sure how eBay works internationally...

rjorge
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Finally received my Courui, after 30 days, but unfortunately with a loose reflector! No o-rings.

tatasal
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My gray Courui has finally landed in the USA, making a stopover for an internal ‘makeover’ by Brad, a.k.a. 18sixfifty, before making its final journey back to a country not far away from China!

Cereal_killer
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Just wanted to share my new buck driver project. At this point I’ve got a stable running driver but fitting it in the courui is just to much work, I’m going to leave this one as is but not do any more, its just to much work and money to do these lights. I’ll be designing a new board for a more universal application…

This is a pic I thought would be a lot more cool than it was (its also very short range for my usual high power thrower beamshot’s, only 150yds). Also extremely hard to get this shot, I took it from a rail road bridge 60’ above the water with no solid floor.

This light is a DX courui running BU_CK with an XM-L2 U2 1A dedomed at 7.7A from NCRB’s (no higher power from ICR’s, exactly how it should be). it makes 523kCd!

All in all probably not worth the cost in this light for under 100kcd more output (using my 17dd_PIC I was getting 450kcd at 6.4A) but it was the first BU_CK I had running so it did serve its purpose.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

Jaza
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Soldered this back to where is should be, but this is not bright as my gray one. I noticed this blinks about once in 5sec, very fast blink barely could see it. any ideas why gray medium is as bright as this black high?

dthoang
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Jaza wrote:
Soldered this back to where is should be, but this is not bright as my gray one. I noticed this blinks about once in 5sec, very fast blink barely could see it. any ideas why gray medium is as bright as this black high? !http://jaza.netanvia.fi/wp-content/uploads/sites/115/2014/11/courui-driv...!

Why is the second leg of the inductor hanging in mid-air?

one year rookie

DavidEF
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dthoang wrote:
Jaza wrote:
Soldered this back to where is should be, but this is not bright as my gray one. I noticed this blinks about once in 5sec, very fast blink barely could see it. any ideas why gray medium is as bright as this black high? !http://jaza.netanvia.fi/wp-content/uploads/sites/115/2014/11/courui-driv...!

Why is the second leg of the inductor hanging in mid-air?


That’s the way it came. A few posts back, there is an explanation with the same picture. That is the part he is saying he soldered back to where it should be.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

L4M4
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Got my grey one today, too.

Big ass light. Wonderfull.

Mine draws 2.11 Amps out of 3 90% full TrustFire 2400mAh (unknown age).
2.11 Amps trough a extremely thin wire in the end-part of the light… changed it immediately.

Feels a bit too light for it’s size, I think.
-
To open it, just like the Kings? Remove switch, push with screwdriver?

wight
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L4M4 wrote:
Got my grey one today, too.

Big ass light. Wonderfull.

Mine draws 2.11 Amps out of 3 90% full TrustFire 2400mAh (unknown age).
2.11 Amps trough a extremely thin wire in the end-part of the light… changed it immediately.

Feels a bit too light for it’s size, I think.
-
To open it, just like the Kings? Remove switch, push with screwdriver?

I desoldered the LED star and unscrewed the shelf. Then I popped the driver out from above.

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

cnrffl1
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I placed an order for a black one on Oct 13, got an email that the light was shipped on Oct 16. It is Nov 21 and it is not here yet. Should I be worry?

DavidEF
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cnrffl1 wrote:
I placed an order for a black one on Oct 13, got an email that the light was shipped on Oct 16. It is Nov 21 and it is not here yet. Should I be worry?
Not yet, unless you live next door to Gearbest. I’ve ordered three of these lights now. The first, I ordered for myself. I paid the two dollars extra for tracking, and was really displeased with what I got for the two dollars, so I didn’t get tracking on the other two. But, here’s how mine have been:

First light – ordered 9/23, received 10/20 – almost a month (with tracking)
Second one – ordered 10/23, received 11/05 – about a week and a half! Woo-hoo! (without tracking)
Third light – ordered 11/02, received NOT YET, STILL WAITING 11/21! (without tracking)

So, there ya have it. Shipping times are not consistent or predictable in any way, but will most likely be over a week at least.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

L4M4
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He is waiting for 5 weeks now Wink

I got mine in ~18 days including weekend and customs.
But I chose the NL Post – so it’s a bit faster than usual to germany.

I got an order from AliExpress from 25.04 this year some days ago… was delivered on road by a tiny snail I guess.

DavidEF
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L4M4 wrote:
He is waiting for 5 weeks now Wink

How did I miss that? For some reason, I read that completely wrong! I saw Nov where he said Oct, so I was thinking 5 days! Yeah, 5 weeks is a long time to wait. Sorry about that!

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

willie
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L4M4 wrote:
He is waiting for 5 weeks now Wink

I got mine in ~18 days including weekend and customs.
But I chose the NL Post – so it’s a bit faster than usual to germany.

I got an order from AliExpress from 25.04 this year some days ago… was delivered on road by a tiny snail I guess.

Almost seven months……World record!
Did it come in a “Note in a Bottle” thrown in the sea?

cnrffl1
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DavidEF, your second order arrived very fast. I ordered 10 days before yours. I am thinking to file a Paypal dispute in a couple of days.

austime
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Ordered 21st oct. Delivered today (so 1 month for me). Gearbest selected nl post to australia. I got black and it looks great. No issues at all (but haven’t pulled it apart yet). There was some solder on both positive and negative of battery side of driver, but its not a problem. Thanks gearbest!

Fragarach
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So my light arrived..
batteries are charging so I can test it..
Impressions so far is not favorable so far as QC goes.
First thing i noticed..
box not even taped shut. Single peice of bubble wrap half covering light.
damaged anodizing
scratches on lense
impact marks and scratching on inside of reflector.
strange rattle when handling light.

Ok so Im not going to turn on electronics that rattle..

Pull the light apart..
No lubrication on any threads.
more damage to anodizing
scuff marks and what looks like a finger print on the led’s dome.
unscrew the pill..
located the rattle…
there is a random screw bouncing around on the driver.. doesn’t match any other screw in the light so not sure where on earth it came from.

Batteries almost charged.
wonder if it will turn on!

Turns on ok..
High. Med. Strobe.
Bit floodier than I expected.
Dedome time

I have enough knowledge to be dangerous at whatever I do.
I ask obscure questions to become less dangerous not more.
EDC Mini Mag + Victorinox Mini on keys, TN12 on belt.
-=TMiV=-

18sixfifty
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I just finished modding one of these and it turned out fantastic. I put a R50 over the resistor, added heavy gauge wire and used silver coated braid for the tailcap springs. I de-domed the emitter and put in on a noctigon. I also changed the centering ring out but I have no idea what ring I used. I always have a bunch of them so I just kept trying different ones until I hit on one that worked right. On the pill, I turned it upside down and lapped the surface with different grits of sandpaper until it was shiny. Then when I put it back in I used a combination of “omegathermal 201” and silicone carbide on the threads and around the bottom for much better heat transfer. Because of the vast discrepancies in testing I am not going to post my lumen count or KCD numbers. I’ll just say it’s Very bright and the beam is perfectly focused. At a quarter mile you can still see the round hotspot on trees. For me that puts the light into the super thrower category. Similar in lumens and throw to a fairly well modded TN31.

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

Pulsar13
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I just received mine and finished modding it too.

I remembered member LinusHoffman mentioned this is not a light for a beginner. I found out that is very true.

- The switch came unscrewed (or loosened during mail)

- The switch is very light – too easy accidentally to turn on. Needs washer mod.

- Absolutely tiny wire on the negative terminal – looks like AWG28! Needs some copper.

- High resistance steel spring – needs silicone wire mod.

- Pill has no hole to turn – needs some drilling

- HUGE HUGE thermal sag in the beginning. About 20% output drop in 10s. What were they using? Dang – the star doesn’t even touch the pill! It’s just sitting on top of the very strong epoxy-glue-like-gob. Needs emitter swap – XML2 on copper and proper thermal paste.

- Pill threaded to deeply in – emitter cannot focus properly. Barely touches the reflector. Needs focusing-refocusing by adjusting the pill depth until proper focus is found. CAUTION. Will blast 100+kcd straight to your eye if mod#2 is not done. Trust me Wink

Honestly I was only looking to solder a copper line to the negative terminal – and ended up having to do all of the above. So, yeah, prepare some time if you’re modding this.

In the beginning this is not too spectacular a light. Just around 50kcd and not impressive considering its head size and people’s expentancy.

After initial braiding etc and shorting the resistor – it gets to 100kcd but drops quickly to 80ish – signs of huge thermal sag.

After emitter swap and final tuning, I managed to get 130kcd and it holds steady. Boy I must say this light is impressive. It’s not even dedomed, and I’m already so happy with the throw.

Werner
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18sixfifty wrote:
used silver coated braid for the tailcap springs

Where did you purchase it and does it work better than the normal silicone wire or copperbraid for deSoldering?

Tom E
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18sixfifty wrote:
I just finished modding one of these and it turned out fantastic. I put a R50 over the resistor, added heavy gauge wire and used silver coated braid for the tailcap springs. I de-domed the emitter and put in on a noctigon. I also changed the centering ring out but I have no idea what ring I used. I always have a bunch of them so I just kept trying different ones until I hit on one that worked right. On the pill, I turned it upside down and lapped the surface with different grits of sandpaper until it was shiny. Then when I put it back in I used a combination of "omegathermal 201" and silicone carbide on the threads and around the bottom for much better heat transfer. Because of the vast discrepancies in testing I am not going to post my lumen count or KCD numbers. I'll just say it's Very bright and the beam is perfectly focused. At a quarter mile you can still see the round hotspot on trees. For me that puts the light into the super thrower category. Similar in lumens and throw to a fairly well modded TN31.

I'd love to see you post amps (taken anywhere you want) and throw #'s. We will gladly accept "18sixfifty" lumen and kcd #'s Smile. I've been adding a disclaimer when posting #'s - simple CYA. I refuse to let a small minority's (1) objection stop me. Would be interesting to here if someone got over 400 kcd out of one of these...

Silver coated braid? I use 22 or 24 AWG silicone coated wire now, depending on the spring size and seems to hold up much better than braid - I gave up on braid a while back.

wight
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Werner wrote:
18sixfifty wrote:
used silver coated braid for the tailcap springs

Where did you purchase it and does it work better than the normal silicone wire or copperbraid for deSoldering?

Tom E wrote:
[snip]

Silver coated braid? I use 22 or 24 AWG silicone coated wire now, depending on the spring size and seems to hold up much better than braid – I gave up on braid a while back.


Here is 18sixfifty’s thread on that subject: No more copper mesh/braid Silver is the way to go!
http://budgetlightforum.com/node/34727

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

L4M4
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Pulsar13 wrote:
- The switch came unscrewed (or loosened during mail)

- Pill threaded to deeply in – emitter cannot focus properly. Barely touches the reflector. Needs focusing-refocusing by adjusting the pill depth until proper focus is found. CAUTION. Will blast 100+kcd straight to your eye if mod#2 is not done. Trust me Wink

I can confirm both.
The Switch was barely attached and needed some force to go all the way down on mine.
Also switched the tiny wire to some copper strand

Yesterday, I changed the LED with this one .
The contacts of the board (even in original) touch the reflector – so I flattened some thick copper strand with my bench vise and soldered it with that.
Now the reflector can sit much closer to the PCB and this light throws well. It’s spot is now the same size as the Yezl Y3 – just a bit brighter because of “no sense resistor”-mod Big Smile

unfortunately I dropped the light from my bench and now it has a big dent at the back – but it could be worse.

gaston01
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Cereal_killer wrote:
This light is a DX courui running BU_CK with an XM-L2 U2 1A dedomed at 7.7A from NCRB’s (no higher power from ICR’s, exactly how it should be). it makes 523kCd!
Shocked It is your flashlight? very good number! what else can know about her? Smile

Sorry for my bad English…

tatasal
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New modding thread on this Courui (by vestureofblood) to 6 XMLs !!!!

http://budgetlightforum.com/node/36100

garrybunk
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Finally received mine!  Very nice looking light.  Can't power it up yet and won't have time to mod it for awhile, but I'm excited!

-Garry

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Nightbird95
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Finally received my Gray Courui D01 – 47 days after making the order. It is indeed a very nice looking light and is a good thrower in stock (no mods, not even focus adjustments or thread lubes or spring braids). My tests at 11 meters read 671 lux (81,191 cd) or 570 meters throw.

Here’s my Gray D01 beside my modified SupBeam K40. The K40 is its closest rival in external specs.

Here are the business ends of my Gray D01 and my K40. The D01 has a wider reflector than the K40. When modified similarly, i.e. same dedomed XM-L2, driver amps and AR lens, the D01 should throw better.

And here are the 1.5 meter beam shots of my D01 and K40. The K40 has dedomed XM-L2 T61B and ‘shorted’ sens resistors giving at least 6.1 Amps to the LED.

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