New Sofirn SP33 V3 !!

Charging the SP33v3 using USB C to USB C is possible but a charger that will allow it my be hard to locate.

I have 6 USB C chargers and 14 USB A chargers.

All of my USB A chargers with all my USB A to USB C cables worked at charging the Sofirn SP33v3 including the USB A to USB C cable that was included in the SP33v3 box.

Only 2 of my USB C chargers worked and they both were the same model/brand of charger.

They are LG branded and were shipped in the box with Google Nexus 5X phones.They are my oldest USB C chargers.Attaching a U2 USB tester showed it charging at 5 volts and 0.9 amps.The LG charger lists an output of 5 volts and 3.0 amps

Inside the SP33v3 was a Sofirn branded 26650 5500mAh battery that was showing yellow button color before the UCB cable was inserted in the USB C port on the SP33v3.

The side power button on the SP33v3 flashes red when it is charging via USB C

You seem to have something fairly uncommon - a pair of non-compliant USB-C chargers.

My guess is LG put the physical USB-C port in place, but made no other changes to allow for power negotiation. Since those phone chargers are low voltage / low current, there wasn’t much of a down-side for them. The upside for you, is you have two USB-C slow chargers that will work on devices that did not properly implement USB-C power.

Received mine today. I like it. It was between this and Convoy m3 for house light. This was cheaper, especially with 11.11 discount. Also while Convoy has a brighter turbo, the high mode isn’t. Turbo is something I barely use outside of occasional wow factor.

I was afraid the tint would be too cold. But I am pleased with it. Here is where Convoys are better though.

The attachment of the rubber insert over the USB port seemed to strain pretty tight when I charged it up. I am afraid of tearing it off. I think I am just not going to use it. Thankfully I do have a battery charger.

I like cooler tints

I also will probably not be using USB charging on the SP33v3

I have several spare 26650 and 18650 batteries that swap in very quickly but don't have any 21700 that fit the plastic sleeve much better than the 18650.

This light fits in hand very nicely.The size and power are near perfect for me.

On turbo it's an excellent hand warmer

Try putting some thread & o-ring lube on the rubber post that holds the USB cover in place. If it can spin and move more freely, it should reduce stress on that part.

I received 2 black ShockLi 26650 5500mAh batteries yesterday and they both easily fit in the SP33v3

They were both at 3.85 volts when received and both charged to 4.2 volts at 1/2 amp. in an Xtar VC4

Hi BLFers and Sofirn Fans!

You can purchase direclty on our official website: www.sofirnlight.com now!

We uploaded flashlights, batteries&chargers. Some are the latest version, some are old models for inventory-clearance. Check all the products and see what you need! It doesn't matter where you are located.

Link: https://sofirnlight.com/collections/all

Furthermore, if you need some products online but no good place to buy, we can find the source and sell on the website at a great price!

oops, almost forgot the discount code: ALL$2OFF. Use it to save US$2 for your order. Only 18 times left to be used. First come, first served!

Any questions, please reply or PM.

Sofirn Team

I took some measurements of the SP33 v3.0 with the Texas Ace lumen tube calibrated with Maukka lights:

Sofirn SP33 v3.0 Turbo, 2991 lumens, 6810K, DUV –0.001, CRI 68.1, R9 –21.7, R12 42.9, Rf 62, Rg 97, Golisi 4300mah 26650
Sofirn SP33 v3.0 Turbo, 2896 lumens, Vapcell 5500mah 26650

Thanks for these measurements! 6800K, 68 CRI hmm…

Nice info. Thanks.

6810K :open_mouth:

Thanks SKV89 for the measurements. Would you happen to also have the Sofirn SP33 v2.0, and have the same kind of measurements for that model? So have an idea of the differences… Thanks very much in advance!

I do have the SP33 v2.0 but it is modded with 4xE21A

I am sorry if this seems stupid, but is 68 cri and 6800k good?

Thank you

Not to me, it isn’t.

That’s going to be a fairly ‘cool’ tint, and I much prefer warmer tints in the <\ 4000k range. Also, many CRI (color rendering index) ratings today are in the high 90s.

Now it’s true that a high CRI is not absolutely essential in a good light, but an icy cool blue/white tint does not appeal to me at all any more. In principal I like this light a lot, and if it had a warmer emitter I’d be all over it. As it is, I’m going to pass.

Thank you for the response.

From what little I understand a higher tint temperature is supposed to mean higher output. But according to what was posted above, the SP33 V3 does not make its 3500 lumens rating.

Don’t let ‘output numbers’ lead you astray. They’re just numbers - and yes, cooler emitter temperatures do boast marginally higher numbers - but the overall usefulness of a light is judged by a lot more than an extra hundred lumens here or there. I can guarantee you’ll never be able to tell the difference between 1,000 lumens and 1,100 lumens with your naked eye.

It’s a bit like saying that a street rod will go 10 km./hr faster than a Mercedes. It might, but that doesn’t necessarily make it a better car overall.

If you spend any amount of money on cool emitters for the simple reason of higher lumen numbers, it would be wise to brush up on your modding skills, because you’ll probably be swapping them out before long. That’s where a lot of us began……me included.

I smile a bit when I read some posts on this forum debating the merits and faults of the range of Kelvin temperature LEDs in modern flashlights.

My youth was in the age of Lincoln Logs,Erector Sets,Gilbert Chemistry Sets and an olive drab boy scout flashlight that housed 2 Everready D batteries(notorious leakers).I like modern LED flashlights

Yes,the light's K temperature on an object will render observed color differently but of no concern when only adequate lighting is needed to find something in darkness or illuminate the path.

My SP33v3 with ShockLi 26650 5500mAhdoesn't appear to be too cool but that's only my novice opinion.My Nitecore EA41(2015)had a very easy to see cool blue tint but served it's purpose well until the copper tops leaked in it and it no longer functions.I'd like to rebuild it but for lack of knowledge.

I find the moonlight mode in flashlights useless but stepped low,medium,high and turbo quite useful.I'm on the fence with other functions.

Ah, erector sets. I’m in agreement with you on ML or FF mode. At my age , the more light the better. :+1: And during the day, those very low modes make you look at the led to make sure it is not on before setting it down or putting it back in your pocket. They should be like turbo or strobe, not in the main cycle.

Added test results for all modes. Here goes:

Moonlight
Output: 2 lumens
CCT: 5292K
DUV: 0.0158
Ra (CRI): 68.1

Low mode
Output: 84 lumens
CCT: 6299K
DUV: 0.0035
Ra (CRI): 66.7

Mid mode
Output: 307 lumens
CCT: 6613K
DUV: 0.0008
Ra (CRI): 67.2

High mode
Output: 1277 lumens
CCT: 6740K
DUV: –0.0003
Ra (CRI): 67.4

I’m not a fan of CW but it is not very blue like the cheap Amazon and Aliexpress lights. It’s pretty good for gift lights because the UI is so simple.

I wish they made a 6V or 12V version with USB-C because you can mod those with some good tinted XHP70 emitters from Kaidomain