[Available again! - BLF special edition light] new Sofirn AAA twisty high CRI 5mm LED

Start with quality components, not the cheap stuff.

https://www.google.com/search?client=firefox-b-1-ab&q=electronic+semiconductor+quality+MTBF

Oh, wait ….

… checking the AliExpress site often, daily in fact, waiting for the other colored body variants.

And indeed the parcel was available for pickup today.

Unfortunately I only received 1x 5600K when I ordered 1x both. Only one inside and even the CN22 form said “quantity 1”.
Oh well, shit happens. Not a big deal! Sent a message to them. They’ll probably get back to me later “today”, it’s 2AM in Shenzhen right now.

Like I said before, at this moment I could order more C01’s but since I did not get both CCT I don’t know which one I like more. Argh…

Note to Sofirn: the 11-11 sale is clearly the wrong moment to launch a new product :person_facepalming:

I ordered 1 of each this morning to see what all the hype is about.

Uh oh, now you will find out that it is just a nice little light with nice tint and pretty weak output. :person_facepalming:

Edit: you did write post #2000 in this thread, that is good start :slight_smile:

It fills in the black shadows between streetlights quite adequately, and I love the wide fill, full sidewalk.

But my second package is shown by Ali tracking as signed for and handed over, but it never arrived in my mailbox.

Received my 2 Sofirn today

First impressions
Sofirn tailstands more easily, Fenix throws more.

weight w no battery and no clip
Sofirn 14.2 grams
Fenix 13.3 grams

The lumens measurements were all done using the same Lithium Primary, in the Fenix body, I just changed the heads for the lumens tests.

in this next photo you can get some idea that the Fenix has more throw

Lumens
Sofirn C01 3200k 6.1 Lumens
Sofirn C01 5600k 9 lumens
Fenix E01 6000k 10.2 lumens

The beam on the Fenix is smaller, brighter, throws more and has a more concentrated hotspot.
Fenix has blue tinted hotspot
5600k Sofirn looks white and very floody, almost no hotspot
3200, Sofirn looks slightly orange and very floody, almost no hotspot

it is 10 am by a window on an overcast day. I cannot see the beam of the sofirns on the ceiling, only the blue hotspot of the fenix is visible.

the 5600k sofirn has the most “natural” tint

another view of the beam shapes and hotspots

Test of looking under the bed, during the day, when my brain is White Balanced to Daylight.
The 5600k Yuji is my favorite. The Fenix blue tint and hotspot bothers me. The warm Yuji is too dim and warm, at this time of day.

More tests to follow tonight when I wake for the bathroom… I suspect the warm Yuji will prevail in that application, but will update after real world testing.

Ooops… somebody got some ‘splainin’ to do!

Bull
Pics or it didn’t happen

Thanks for the report. Good comparison pictures.

If you’re like me, you’ll “warm” up to the 3200K after dark, but I agree, it’s less than ideal when your primary reference is daylight.

Hank thanks to the pointers about reliability.
Got me thinking about redundancy as well.
So in the true spirit of BLF I present the C01-RAIF-1

A pity Yuji doesn’t selll 4400K 5mm LEDs by the way :wink:

I understood it was only the metal clip that was rusted which caused the black paint of the clip to peel off.
The body of the C01 is made of aluminium, which oxidizes, and is not able to “rust”.

A photograph would be nice in this case so anyone can assess the exact nature of the problem.

That said: the anodization of the C01 body and the paint of the clip will wear down over time, especially when worn on a keychain.
The anodization type is nowhere explicitly specified by Sofirn, so it is probably the less robust Type II.

so which AAA do we like? and is a lithium AAA an option? never heard of those.

Energizer Ultimate Lithium is a primary (non-rechargeable) cell known for excellent shelf life and tolerance to high and very low temperatures, good discharge characteristics, and little to no leak risk. The downside is they’re a little bit pricey, but have been getting better lately. It’s an excellent option if you’re ok with the price.

Alkalines will work well in this light from a runtime perspective, especially the reduced output that occurs after the first 8-10 hours of operation. However, there is the ever-present leak risk that has to be considered for alkalines. I’ve had good luck cleaning up alkaline leakage with vinegar, so I might still use alkalines in mine. I haven’t decided.

Rechargeable nickel metal hydride (NiMH) batteries have very good discharge characteristics, a low potential total cost of ownership due to being rechargeable, and little to no leak risk. However, their lifespan is shortened if over-discharged, and this light is capable of over-discharging them. Recharging when the light gets noticeably dim will probably be reasonable protection against that.

I have not been a member for a long period of time but this thread has showed up at some point every week. The output is what had deterred me from purchasing this light. I would think a 30 lumen high would make this light more ideal. Just money. Sure I have spent it on worse things in the past.

Nimh sounds good thanks for the reply. I check my batteries pretty often. Just put them in a charger for a sec to see how they’re doing.

Just got my 3200K light about 30 minutes ago and wow, I can now get why people would pay up the wazoo for a modded E01 with one of these Yuji’s. I was worried I wouldn’t like the 3200K judging by the beamshots others have posted, but I’m really liking it. If I can find my camera, I’ll try doing some comparison shots, but comparing my warm white high CRI XP-G Preon to the C01, the preon looks surprisingly green.

The body itself looks flawless upon initial inspection, no chips or peeling, same for the clip. Really loving the look of the tailcap and it tailstands much better than the E01.

Now if they’d hurry up with the colored versions……

I just got my first 2 3200K lights. Very nice. I can’t wait for the red & blue.

Yay :slight_smile:
I was also concerned about how yellow the Yuji warm would be… I can say that it is more orange than a 219c… which Im happy about, because I find 219c too yellow. And yes, the Warm Yuji is very nice at night…

I was curious how the Warm Yuji compared to a 3000k 219c that I have in an Olight i3s, and also to see how the 2000k E21A in my Utorch S1 Mini w Aspheric beam, and my 4500k 219b 9080 Utorch compared… and I threw in an HDS from 2011… so, without further ado, more beamshots:

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Im pretty much done with the purple tinted Fenix after this pic… but in parting I will say, it throws much farther than the Yuji LEDs…

Hotspot overexposes part of the pic:

Floody even beam:

Gotta Love the Warm Yuji when its time to get mellow