[BLF special edition light] new Sofirn AAA twisty high CRI Yuji 5mm LED (CCT 3200K or 5600K) for 6.50 USD

2853 posts / 0 new
Last post
Noir
Noir's picture
Offline
Last seen: 29 min 8 sec ago
Joined: 06/03/2018 - 09:13
Posts: 87
Location: Germany

How did you remove the paint?

P33
Offline
Last seen: 14 hours 43 min ago
Joined: 09/25/2018 - 16:41
Posts: 295
Location: Kraków, Poland

Soo.. I started off with my nail but then switched off to Spyderco Tri-angle safety guard Wink – essentially just a brass rod not to scratch the finish. After most of it was gone I just finished off tricky spots with chisel tool from my multitool.
I’d say it’s max 10 min work. Paint is barely holding on it (it’s nicely polished steel underneath).

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385

BLF GT nano edition Wink
IMG-20181213-234251

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

slowtechstef
slowtechstef's picture
Offline
Last seen: 1 week 5 days ago
Joined: 02/17/2018 - 12:39
Posts: 213
Location: the Netherlands

So regarding the Sofirn C01 pocket clips:
Prototype: clip not good, breaks.
First production batch: clip is good, strong.
Second production batch: clip is not good, bends.

hank wrote:
It’s always the subcontractor’s fault. Can’t watch’em carefully enough.

Like you already said, chabuduo

goshdogit wrote:
Excellent work! I especially love the smiling moon!
Is that his artwork in your new avatar as well?

Yep. I showed him this thread, and then we had this conversation:
He: “OMG dad! Your profile picture with that small keychain thingy, is … well … not good.”
Me: “But I want to make a statement.”
He: “Here, wait, I will draw you a new picture.”
New generation, digital native.

SfGiants4000 wrote:
Is the Yugi LED capable of 100+ lumens?

Quality, not quantity, that is what this light is about.
For more quantity&quality, look for a 4000K SST-20 LED flashlight, google Emisar D4.
Or just order any flashlight that is improved by Virence.

maukka wrote:
Mine arrived as well, 2×3200K & 2×5600K. […] I’m really digging the warm Yuji now in the evening.

Good to have you on board with the C01 Smile
And thanks for your measurements, especially for the combined 3200K+5600K chart, that one specifically means a lot to me. Party
You are a fantastic asset for the flashaholic community.

maukka wrote:
Big tint difference in the 3200K ones I got:

I have received all my 5 lights from the interest list now: of my 4 3200K C01, 3 are above BBL and only 1 is rosy tinted.
So tint lottery is a trait the Sofirn C01s share with the Zebralights Facepalm

iamlucky13 wrote:
Regardless, every Yuji I’ve seen, from a couple different batches, has looked great, so this doesn’t ultimately affect my eagerness for the C01.

I do agree with iamlucky13 here, even my C01s with above BBL Yuji are still great in actual use.
And miles ahead in light quality of any other 5mm LED flashlight that is commercially available right now.

Quote:
Continuing off-topic, if I can be forgiven for doing so for a moment, I’ve got an even more exotic idea, although definitely beyond the scope of what Clemence is doing: a two channel quad with tint-ramping between 2700K and 5600K or so

Great idea! You identified a trend which will become available in commercial flashlights in due time. There is a Japanese brand of lanterns that already does exactly this (can not remember name right now). You already see it in other domains: IKEA is selling cheap LED lights for fixed armatures that can change to a warmer CCT when dimmed down.
Noir
Noir's picture
Offline
Last seen: 29 min 8 sec ago
Joined: 06/03/2018 - 09:13
Posts: 87
Location: Germany

P33 wrote:
Soo.. I started off with my nail but then switched off to Spyderco Tri-angle safety guard Wink - essentially just a brass rod not to scratch the finish. After most of it was gone I just finished off tricky spots with chisel tool from my multitool. I'd say it's max 10 min work. Paint is barely holding on it (it's nicely polished steel underneath).

Ah, I see, the mechanical way.

Well, that is sort of good and bad news: the good news is that the paint comes of easily if you want a shiny silver clip, the bad news is that the paint comes of easily...foot-in-mouth

I think a bare metal clip (without paint) would have been nicer (perhaps Sofirn could switch to unpainted silver clips for the next batch).

 

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385

[quote=slowtechstef]So regarding the Sofirn C01 pocket clips:
Prototype: clip not good, breaks.
First production batch: clip is good, strong.
Second production batch: clip is not good, bends.

Mine is also soft. maybe if i heat it up to red hot and then cool it down in water or oil the metal will harden a bit. will try that tomorrow.

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

teacher
teacher's picture
Offline
Last seen: 3 months 4 weeks ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

polarweis][quote=slowtechstef wrote:
So regarding the Sofirn C01 pocket clips:
Prototype: clip not good, breaks.
First production batch: clip is good, strong.
Second production batch: clip is not good, bends.

Mine is also soft. maybe if i heat it up to red hot and then cool it down in water or oil the metal will harden a bit. will try that tomorrow.

One thing is for sure, it will not hurt to try. It is worthless as it is. Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Sofirn
Sofirn's picture
Offline
Last seen: 7 hours 54 min ago
Joined: 04/06/2017 - 04:22
Posts: 364
Location: Shenzhen, China

About the weak clip, we talked with the supplier who told clips are from the same mould, so it might be different material. The QC workmake will talk with the supplier seriously today and resolve this issue.

Furthermore, we were suggested to use new led of yuji which is more powerful than the existing 5mm but without legs
https://store.yujiintl.com/collections/frontpage/products/bc-series-high...

jon_slider
jon_slider's picture
Offline
Last seen: 1 hour 52 min ago
Joined: 09/08/2015 - 12:20
Posts: 2396
Location: The Land of Enchantment

SfGiants4000 wrote:
Is the Yugi LED capable of 100+ lumens?

no, but you can get a Peak Eiger that can do that Smile
Sofirn wrote:
we were suggested to use new led of yuji which is more powerful than the existing 5mm but without legs

You have done a fantastic job of building a high CRI light, with a choice of two color temperatures, and for a
very low price.

Thank You!

thanks for the link to the Yuji LEDs, it gives lumen values
existing C01 LED: 6.1-8.8 lm
alternative LED: 18-22 lm

suggestion:
The 18 lumen version would be really cool with a QTC, like the Eiger uses .
But skip the LiIon compatibility, to keep the cost down.. I dont need 100 lumens from AAA.. 20 is plenty for what that little light needs to do.

.

I wonder if there is interest in a Special BLF group buy for a Copper Sofirn C18 with QTC? Wink

Infinitely variable from 0-20 lumens, at the twist of your fingers.. whats not to Love?

iamlucky13
Offline
Last seen: 32 min 56 sec ago
Joined: 06/22/2018 - 09:18
Posts: 611
Location: USA

Beamshot required!

Actually, the Djozz dedomed style would probably work best for this, but I don’t suggest doing that to your light.

polarweis wrote:
BLF GT nano edition Wink IMG-20181213-234251
Henk4U2
Henk4U2's picture
Online
Last seen: 3 min 43 sec ago
Joined: 02/13/2014 - 17:52
Posts: 2976
Location: The heart of the Netherlands (GMT+1)

teacher][quote=polarweis wrote:
slowtechstef wrote:
So regarding the Sofirn C01 pocket clips:
Prototype: clip not good, breaks.
First production batch: clip is good, strong.
Second production batch: clip is not good, bends.

Mine is also soft. maybe if i heat it up to red hot and then cool it down in water or oil the metal will harden a bit. will try that tomorrow.

One thing is for sure, it will not hurt to try. It is worthless as it is. Wink

Depends on the material. There’s a good chance it only gets very brittle and snaps at first use.
It is for a reason that the Dutch version of the expression “the tricks of the trade” is “het geheim van de smid” (the secret of the blacksmith). Wink

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385

[quote=iamlucky13]Beamshot required!

[quote=polarweis]BLF GT nano edition Wink

IMG-20181213-234404

1m to white door. the bright white ball is the reflection. pretty nice throw Big Smile

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

teacher
teacher's picture
Offline
Last seen: 3 months 4 weeks ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

Henk4U2][quote=teacher wrote:
polarweis wrote:
slowtechstef wrote:
So regarding the Sofirn C01 pocket clips:
Prototype: clip not good, breaks.
First production batch: clip is good, strong.
Second production batch: clip is not good, bends.

Mine is also soft. maybe if i heat it up to red hot and then cool it down in water or oil the metal will harden a bit. will try that tomorrow.

One thing is for sure, it will not hurt to try. It is worthless as it is. Wink
Depends on the material. There’s a good chance it only gets very brittle and snaps at first use.
It is for a reason that the Dutch version of the expression “the tricks of the trade” is “het geheim van de smid” (the secret of the blacksmith). Wink
Very true Henk4U2. Thumbs Up …. But it is worthless as it is, so on the offhand chance it might work, it won’t hurt to try.

Tempering after this makeshift ‘heat treating’ attempt might well relieve some of the brittleness.

If you do try it polarweis, let us know the outcome please.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

DrDevil
DrDevil's picture
Offline
Last seen: 36 min 30 sec ago
Joined: 08/18/2015 - 08:46
Posts: 153
Location: Germany

There are 2 more SC01 in Germany.

Must be from the first batch. The clip fits tight. Seems good quality Thumbs Up

Knurling is definitely not on the aggressive Side. The Threads are really smooth. Turning on and off works very well

I´m very happy both with the Light intensity (between the low and the Mid of a Lumintop EDC01) and the Light colour

I would say the BLF Team that realized this Light and Sofirn did a very good Job Thumbs Up

Thank´s a lot for this

and Greetings from Germany

P33
Offline
Last seen: 14 hours 43 min ago
Joined: 09/25/2018 - 16:41
Posts: 295
Location: Kraków, Poland

Lumintop tint doesn’t look too bad on these pictures either. What would you say?

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385
P33 wrote:
Lumintop tint doesn’t look too bad on these pictures either. What would you say?

both are sofirn i think.

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

P33
Offline
Last seen: 14 hours 43 min ago
Joined: 09/25/2018 - 16:41
Posts: 295
Location: Kraków, Poland
Facepalm I thought I’m expecting too much from XP-G3..
DrDevil
DrDevil's picture
Offline
Last seen: 36 min 30 sec ago
Joined: 08/18/2015 - 08:46
Posts: 153
Location: Germany
P33 wrote:
Lumintop tint doesn’t look too bad on these pictures either. What would you say?

Oh, Sorry for not clarifying Blushing

Yes both are Sofirn C01, 5600K and 3200K

Here is a direct comparison with the Lumintop EDC01 on low and Med

Without direct comparison it appears to be a pure white Thumbs Up

P33
Offline
Last seen: 14 hours 43 min ago
Joined: 09/25/2018 - 16:41
Posts: 295
Location: Kraków, Poland

Doesn’t look too bad to be honest. One is on my way anyway but I was just wondering if I’m not gonna be embarassed if I give it as a gift to someone Wink

jon_slider
jon_slider's picture
Offline
Last seen: 1 hour 52 min ago
Joined: 09/08/2015 - 12:20
Posts: 2396
Location: The Land of Enchantment

DrDevil wrote:
Here is a direct comparison with the Lumintop EDC01 on low and Med

Thank you for the photos
The EDC01 w XP-G3 has Green Tint, and is Not High CRI, so not the same Quality of Light, as the Sofirn CO1 w Yuji

For people that want to go beyond the single mode Sofirn C01, but still with High CRI in AAA size, I highly recommend Clemence’s latest offering, a High CRI 3 mode AAA light

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385

IMG-20181214-183041

So i threw the clip in my fireplace. The black paint was gone real fast. Waited till red hot and dipped it in olive oil(extra virgin lol). Then i tempered it by hanging it on the metal fireshield(around 200c) for 2 hours. Its much harder now but can still be bend.

IMG-20181214-213546

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

jon_slider
jon_slider's picture
Offline
Last seen: 1 hour 52 min ago
Joined: 09/08/2015 - 12:20
Posts: 2396
Location: The Land of Enchantment
iamlucky13 wrote:
I think the spots multiple users have documented are due to the “reflector”

I would say definitely yes, that the artifact in the Sofirn C01 is caused by the shiny cone.
.
.

My Utorch S1 Mini with shiny bezel, has a round artifact in the center of the beam, on right.

l-r 2000k E21a, 4500k N219b, 6500k XP-L

the light on the left has black magic marker on the bezel, the center light has black paint, on the right shiny
Note the three lights pictured, Utorch S1 Mini, have Aspheric Lenses, same as the Yuji LED. They are NOT supposed to have a hotspot.

conclusion
Shiny bezel causes hotspot artifacts in Sofirn C01 Wink

teacher
teacher's picture
Offline
Last seen: 3 months 4 weeks ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

polarweis wrote:

So i threw the clip in my fireplace. The black paint was gone real fast. Waited till red hot and dipped it in olive oil(extra virgin lol). Then i tempered it by hanging it on the metal fireshield(around 200c) for 2 hours. Its much harder now but can still be bend.

That’s good info polarweis, thank you. Thumbs Up
You said you went to “red hot” & got some results.
When mine get here I think I am going to try going a bit hotter, into the ‘Orange hot’ range; temper a bit hotter too & see what happens.
It would sure help if we knew what metal the clip was made of.
…….
Edit: It would seem to indicate, since you were able to achieve some degree of hardness; it is not ‘mild steel’ at least.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

iamlucky13
Offline
Last seen: 32 min 56 sec ago
Joined: 06/22/2018 - 09:18
Posts: 611
Location: USA

polarweis][quote=iamlucky13 wrote:
Beamshot required!
polarweis wrote:
BLF GT nano edition Wink

1m to white door. the bright white ball is the reflection. pretty nice throw Big Smile

Perhaps not quite as throwy as the initial GT, but thanks for indulging my curiosity about how it would look with that big reflector. Big Smile

polarweis
polarweis's picture
Offline
Last seen: 1 day 16 min ago
Joined: 05/31/2017 - 17:05
Posts: 385
teacher [/quote wrote:
That’s good info polarweis, thank you. Thumbs Up You said you went to “red hot” & got some results. When mine get here I think I am going to try going a bit hotter, into the ‘Orange hot’ range; temper a bit hotter too & see what happens. It would sure help if we knew what metal the clip was made of. ……. Edit: It would seem to indicate, since you were able to achieve some degree of hardness; it is not ‘mild steel’ at least.

Yeah i think with more heat it will get a little bit harder. It will get a strange blue color tho.

They say its hot enough when its not magnetic any more. Mine was still magnetic. I think you really need a torch to get enough heat.

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

teacher
teacher's picture
Offline
Last seen: 3 months 4 weeks ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

polarweis wrote:
teacher wrote:

That’s good info polarweis, thank you. Thumbs Up
You said you went to “red hot” & got some results.
When mine get here I think I am going to try going a bit hotter, into the ‘Orange hot’ range; temper a bit hotter too & see what happens.
It would sure help if we knew what metal the clip was made of.
…….
Edit: It would seem to indicate, since you were able to achieve some degree of hardness; it is not ‘mild steel’ at least.
Yeah i think with more heat it will get a little bit harder. It will get a strange blue color tho.

They say its hot enough when its not magnetic any more. Mine was still magnetic. I think you really need a torch to get enough heat.

Yep, you are correct about the “not magnetic”. Thumbs Up

A torch will work just fine or a ‘heat treat oven’ if one has access to it. Fortunately I do.

It will be a ‘crap shoot’ getting it right on this unknown metal… but if we can figure it out by trial & error… we can share it for anyone interested.

The info you shared is a great start… Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

john1230
Offline
Last seen: 2 months 5 hours ago
Joined: 10/18/2018 - 12:40
Posts: 9
Location: UK

Just want to say that I received mine 3 days ago. I bought it 10th November, so it took 32 days to get to the UK. I like the 5600K tint alot, it's the best cool tint I've seen so far. Great job to everyone who was involved to get this light into production!

Phlogiston
Phlogiston's picture
Offline
Last seen: 2 hours 35 min ago
Joined: 10/27/2016 - 16:57
Posts: 888
Location: Scotland

Thanks John, good to know. I ordered mine a day after you, so hopefully they’ll be here soon!

Streamer
Streamer's picture
Offline
Last seen: 6 days 15 hours ago
Joined: 12/01/2011 - 21:06
Posts: 3792
Location: TX

Mine are in US last week, but damn, once in ISC cutoms in New York OR Chicago….it can be another 2 weeks to get to me in southern US….I’m used to it after so many years, so I’ve learned to just wait and wait and wait……. Innocent Evil Facepalm

Lonelydad
Lonelydad's picture
Offline
Last seen: 2 months 1 week ago
Joined: 01/09/2016 - 00:14
Posts: 197
Location: Western Iowa, USofA

polarweis wrote:
IMG-20181214-183041

So i threw the clip in my fireplace. The black paint was gone real fast. Waited till red hot and dipped it in olive oil(extra virgin lol). Then i tempered it by hanging it on the metal fireshield(around 200c) for 2 hours. Its much harder now but can still be bend.

IMG-20181214-213546


When I saw the top picture, I first thought it looked like that itty bitty animal they’ve found that apparently can’t be killed! Facepalm

You don't really need a parachute to skydive. But you DO need one if you want to skydive twice!

Pages