Sofirn IF25 USB-C 2500lm Variable Temempeture 2700K-6500K quad led

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icpart
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Thanks for the link Thumbs Up

Serlite
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Thanks for the link, even with Google Translate the review was a good read! There’s some fun literary imagery in there too, haha – my favourite being:

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the cooling ribs are so sharp that they can also rub the carrots, or … instead of using pumice for the heels
D'AVerk
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Unfortunatly this flashlight left more questions, that give answers.
It could be cheap (but MSRP price outrageous).

But, any way

1) Cold mode unpleasant because of greenish tint of 6500 SST20.
2) Warm mode is very weak.

Generally, all color modes are weak even in comparison with EDC18 SST20/4000, in turbo. I c’t understand how did they measure lumens from specification.

3) Proprietary UI, when Anduril could be used. What for cool 2700k light if no candle mode )))
4) some reviewers calls it floody, but EDC18 even with SST20 is floodier
5) Still there are no factory diffusers. In combination with Anduril Interface this could be beautiful camping lantern because of color shift and 21700 power.
6) USB plug looks like unreliable, so i am sure that after 10-20-30 usages it would be torn off
7) When flashlight is on charging – only one mode available. Not very dimm and mo very powerful – unknown reasons, why i could have ~300 lumens during charge and can not have 50?

So, if this would be my first flashlight i will be very happy, but now all this issues makes me very uncomfortable

Funtastic
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D'AVerk wrote:
Proprietary UI, when Anduril could be used. What for cool 2700k light if no candle mode )))

Still there are no factory diffusers. In combination with Anduril Interface this could be beautiful camping lantern because of color shift and 21700 power.

USB plug looks like unreliable, so i am sure that after 10-20-30 usages it would be torn off

When flashlight is on charging – only one mode available. Not very dimm and mo very powerful – unknown reasons, why i could have ~300 lumens during charge and can not have 50?

I dislike Anduril and so do the majority of my customers, they’d far rather not use Anduril that has a bazillion functions. Sofirn’s main audience is the general market.

The LT1 Mini is being built using the IF25 so get that if you want a diffuser with Anduril. I agree though it would be nice to have it.

Regarding the USB flap, don’t pull it up, rotate it to the side. I do this for every flashlight

I never use a flashlight on charge but it’s not 300 lumens. On 2700K it’s 77 lumens and balanced it’s 114. Not far off your 50. If you want less then place something over the front.

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Tom E
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Funtastic wrote:
I dislike Anduril and so do the majority of my customers, they'd far rather not use Anduril that has a bazillion functions.

Interesting. Basic operation of Anduril comes down to the ramping operation, or modes, but I assume ramping would most likely be used. Is it any aspect of ramping that is not liked with Anduril? Is ramping operation itself too complicated?

The basic design of ramping operation goes back to the Q8 project, maybe further back, where we got a lot of input from various BLF members at the time, and incorporated their ideas.

The basic criteria/requirements were:

  • quick method to turn it on to previous brightness level
  • quick method to set the lowest setting
  • quick method to set the highest setting
  • easy way to adjust the level once on

The rest of the UI is advanced features and configuration. I think the problems could be reduced by:

  • configuration - pre-configure the light the customer orders to their needs
  • simplify the user manual - separate basic operation from advanced and configurations, and make it clear how simply the light can be operated just by knowing ramping operations

 

Funtastic
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Hi Tom,

I would like to correct my comment.

I love Anduril personally but dislike that my customers find it overwhelming.

Smooth and Stepped Ramping is great as is. I think the most welcomed change would be altering the config to a higher number of clicks. NarsilM was hold for 16s which was great because no one is going to accidentally get into it.

Having to specifically say don’t do 4 clicks otherwise you can mess up the settings can put a potential buyer off.

Please add being able to disable thermal step down too. A lot of users including myself like to have control over it, especially on certain lights. NarsilM was great being able to disable it without messing with the thermal setting if enabled again.

I’d love to see a Muggle mode where full brightness can be reached (even full ramp) with all extra functions disabled. I’d then ship it out on that setting.

I have messaged ToyKeeper, who agrees, about changing the config but it seems many users don’t want to have two different UI’s across new and old lights.

I appreciate your reply

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Tom E
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I can understand accidental multi-click activations, true. With NarsilM, I tried to make the hold time way more than worse case in usage which is 2.5 to 3 secs for full ramping.

 

Disabling thermal config would be nice - I'll be adding that to my next Anduril build, should be easy to do. Changing the 4 clicks to 16 sec hold is also do-able, not sure how easy.

Funtastic
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Tom E wrote:

I can understand accidental multi-click activations, true. With NarsilM, I tried to make the hold time way more than worse case in usage which is 2.5 to 3 secs for full ramping.


 


Disabling thermal config would be nice – I’ll be adding that to my next Anduril build, should be easy to do. Changing the 4 clicks to 16 sec hold is also do-able, not sure how easy.

That sounds great.

You could just change the config to a higher number of clicks if that’s easier.

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

D'AVerk
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Funtastic wrote:

I dislike Anduril and so do the majority of my customers, they’d far rather not use Anduril that has a bazillion functions. Sofirn’s main audience is the general market.

And that’s why they make so strange UI with different logic on ramping and stepped mode? Good Joke.
Funtastic wrote:
The LT1 Mini is being built using the IF25 so get that if you want a diffuser with Anduril. I agree though it would be nice to have it.

This idea is fully shit. Lantern like LT1 is good when you storage it at home, or drive in car. You can allow yourself have so heavy designated flashlight for camping and only for camping.
But when you going with backpack for some days, you can’t have 5 flashlight for each pattern of use.
More, in tourist use, camping flashlight shoud be more stable – not so long and unstable construction like IF25+large diffuser. So this is stupid idea – to make LT1 Mini like IF25 with stationary diffuser. In field conditions there are not flat tables, for “kerosene lamp”

Funtastic wrote:
Regarding the USB flap, don’t pull it up, rotate it to the side. I do this for every flashlight

Thank you, i will try, but the idea like in Astrolux HL01 looks like brilliant.

Funtastic wrote:

I never use a flashlight on charge but it’s not 300 lumens. On 2700K it’s 77 lumens and balanced it’s 114. Not far off your 50. If you want less then place something over the front.

So the main question is – why on other flashlights i can use different modes and here only one. Powerful enough.
And if i want to have moonlight at night when i charge – i should wrap in a towel and lost some power in nowhere?

In 6500k and low currents light is awfull greenish. And with more warm color flash light lost it’s power at all.

I have this night in comparing it with different lights and very dissapointed.

Of course, if it’s the only light, it’s good. But….

Funtastic
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And that’s why they make so strange UI with different logic on ramping and stepped mode? Good Joke

What’s the issue? It’s no different to all other Sofirn lights that use Stepped modes and Ramping. If Stepped modes is so horrible then use Smooth Ramping. The UI is excellent in Ramping.

Single click- On/Off
Hold – Increase/decrease brightness
Click, Hold – Tint Ramping
Click, Click, Click – Strobe

Where’s the problem?

Quote:
The LT1 Mini is being built using the IF25 so get that if you want a diffuser with Anduril

The LT1 Mini is planning to have a removable diffuser so it can be used as a lantern and a flashlight. You might want to have a read of the thread.

If you want a diffuser for the IF25 then do a simple search after measuring the diameter of the head – https://www.aliexpress.com/item/32700981955.html

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So the main question is – why on other flashlights i can use different modes while charging and here only one

Purchase another flashlight that suits your needs or get a diffuser cap. Search for one or make one

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Blggg
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I have been using this for a while now, so I would like to share some of my thoughts.

This light has many pros, the best thing about it is probably its selling point, a tint ramping flashlight. If you normally use your light at lower colour temperature (within orange-ish or yellowish tint) I highly recommend it.

However, if you also use white light, this is when it might start to annoy you because the tint is annoyingly green at low modes as D’Averk mentioned. From my estimation, just from nearly 5000k and up the tint will start to go very green.

Some other gripes are as follows,

- The brightness ramping mode is not smooth. If you have used Anduril light before this might also annoy you. I have used some other Sofirn models like C8F and have tried a SP36 and their brightness ramping were smoother than the IF25s.
- The button is firm, which is good in terms of it is less likely to be inadvertently turned on in your bag or pocket. But when I want to switch between step mode and ramping mode, which requires 4 clicks, I occasionally end up hitting the strop mode (by clicking 3 times). If you are holding a light in a pen-holding gesture and you would like to switch the mode, I find this very difficult to do with my index finger.

The only reason that I’m still keeping this light is because it is lovely when you use it as a lantern as you don’t see the greenish tint and being able to change the colour temperature is really something. I am eagerly waiting to see how the LT1-mini will be. It will be lovely if white light is not green and the diffuser can be removed.

Funtastic
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Quote:
when I want to switch between step mode and ramping mode, which requires 4 clicks, I occasionally end up hitting the strop mode (by clicking 3 times)

Huh, I’ve never had the issue of hitting strobe instead of mode change, are you certain you’re clicking fast enough?

Quote:
However, if you also use white light, this is when it might start to annoy you because the tint is annoyingly green at low modes as D’Averk mentioned. From my estimation, just from nearly 5000k and up the tint will start to go very green.

I’m not someone that cares much about green or blue tints so this hasn’t been an issue for such a low price. It would be different if paying top dollar for a high end brand.

Sofirn mentioned they didn’t use Samsung leds due to a horrible beam pattern with artifacts so they had to use SST20’s.

Quote:
The brightness ramping mode is not smooth. If you have used Anduril light before this might also annoy you

I haven’t noticed this. Sofirn didn’t use Anduril because they believe it’s not simple enough for most people. There’s been a lot of reviews around on different sites of confusion.

Most people don’t want heaps of strobes and blinkies, they don’t care about configuring the settings, they want simple operation – on/off, mode change, single strobe. Sometimes that’s too much and they want a single mode.

Flashlaholics are really the only ones that want a ton of configurable options.

90% of my customers in New Zealand want simple operation as above. I have so much trouble selling Anduril, in fact I still have an SP36 with Anduril for 8 months now. The simple versions get taken and that one left.

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

skinny_tie
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Funtastic wrote:
Quote:
The brightness ramping mode is not smooth. If you have used Anduril light before this might also annoy you

I haven’t noticed this. Sofirn didn’t use Anduril because they believe it’s not simple enough for most people. There’s been a lot of reviews around on different sites of confusion.

I love Anduril and would happily have it on all my torches but I do agree that it’s probably not the best firmware for non-enthusiasts. Unfortunately, I’ve found Sofirn’s in-house firmware to be pretty bad – I don’t mind a simple UI, and I’ve even learned to live with hold-for-off, but the inconsistencies are infuriating.

I know it’s unlikely, but does anyone know whether the IF25 uses an ATtiny MCU so there’s some possibility of it running Anduril?

I hope the LT1 Mini runs Anduril (I haven’t kept up with the thread) so it’s UI is constant with the LT1, and there’s a possibility of using the driver in the IF25.

——-

EDIT: It looks like the LT1 Mini will run Anduril LOL

D'AVerk
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Funtastic wrote:

Purchase another flashlight that suits your needs or get a diffuser cap. Search for one or make one

Do you work for them? There are some real things, which looks like the quirks in best case, and fails in real meaning.

The real visible pwm, the low real output against declared, some awfull greenish tints in all light modes with cold leds, unknown reason of only one mode while charging (not even two – moonlight and one middle). Different UI in ramping mode and stepped mode. No diffuser from factory (diffuser for edc18, as example, could be bought separatly in ali for 2.5buks). No modern modes like candle.

But changeable color temp is extremely close for such usings…

They could made this fl more usable in any way, even for this money (as example, i bought edc18 on ali simply for 26buks), but you simply answer
“Nice fl,i like it, if you d’t like some issues – just shut up and go away”
Говоря по русски, у вас поведение “ссы в глаза – божья роса”.

And the last – if sofirn could produce ltmini which would use samsung led, anduril and could be used like hand flashlight, that means they simply cheating with if25 – all this words about awfull beamshots with samsung hicri leds.

Blggg
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I just recently came back to use the IF25 and have started to love it a bit more (probably just like how people get use to things over time). But I missed the floodiness of Lumintop FW series. Yeah, like D’AVerk previously mentioned that the EDC18 was even more floody, which I found suiting me more for my use. Is there any ways to make the beam more floody? I’m thinking of changing the lens but I have not a clue if there is any compatible lenses.

Firelight2
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Got my IF25.

My initial impressions:

  • Infinitely variable ramping UI is nice, but not as well done as Anduril. Still quite usable though.
  • Infinitely variable color-temperature ramping is exceptionally well-done. The LEDs chosen are very good, without much green. The beam is beautiful.
  • The overall light feels good in the hand, but I would have preferred something a bit narrower. The light is a bit big for pocket EDC.

The light feels solid and well-built with good tint. However, apart the tint-ramping nothing about the light really stands out. Some things that could be improved:

  • Sometimes when using turbo the light forgets last used non-turbo mode and turns on in turbo.
  • A “max turbo” option to enable full power on all 4 LEDs would be nice.
  • The heatsink fins are a bit sharp.
  • Did not come with a pocket clip.

McCatface
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Has anybody tried legoing IF25 tube with EC01?

icpart
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McCatface wrote:
Has anybody tried legoing IF25 tube with EC01?

I can try and I will post reuslts.
cyropro
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After reading this tread about about month ago I ordered the IF25 because I don’t mod lights and this one looked pretty fascinating to me. I’m not usually bothered much by tint and usually stay in the Cree 3D, SST-20 5000k range when I buy something so I wanted to see what this was like.

But I’m really liking the low end 2700k indoors on the IF25 and since I’m in and out a lot at night it’s really great to be able to use the tint ramp outside to go up to the 6500k range. I’m not noticing much green at all when in the 6500k range. I compared to other SST-20’s I have and this IF25 actually looks about the most white without much yellow or green.

For the price, about $30 delivered, I’m pretty happy with it. UI works well enough for me. The only thing I wish it had was a way to keep the blue switch light on as a locator when the light is turned off. The blue light is only on when the light is on (except moonlight) and used as battery indicator. It will be interesting to see if this tint ramping will become a thing with the Emisar lights.

Firelight2
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Your impressions match mine Cyropro.

  • Very unique feature set.
  • Fairly well done UI with both output and tint ramping. Shortcut to moonlight, on-off and turbo.
  • Excellent choice of emitters
  • Feels good in-hand.
  • Excellent price given how unique the features are.

However, it is a bit bigger than I’d like. I’d love it if Emisar came out with a tint-ramping D4v3 with the same emitter setup and using a modified version of Anduril with the same controls as the IF25 for tint ramping (click + click-hold). And with the option to blast all 4 LEDs at max power.

flightless22
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Clip from YooToo SD1 is not great but it fits well.

Yes I want D4 with tint ramping but it would D18 with E21A (2000k + 6500k) tint ramping as an accessory. Evil

thefreeman
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I bought another one for another mod, this time before pulling out the LEDs I did some measurements.

(Edit : turbo is level 6 not 5)

It does get a bit rosy on turbo, but on the lower levels it’s quite green, especially on the cool white side.

Color rendering on level 4 (high), approximately in the middle of the tint ramp :

Blggg
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thefreeman wrote:
I bought another one for another mod, this time before pulling out the LEDs I did some measurements.

It does get a bit rosy on turbo, but on the lower levels it’s quite green, especially on the cool white side.

Color rendering on level 4 (high), approximately in the middle of the tint ramp :

Thank you very much for the test, the freeman. I sold my IF25 because it was terribly green at high CCTs and at that time I still didn’t know how reflow an led. Please post the measurements if you swap for other leds

thefreeman
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Blggg wrote:
Thank you very much for the test, the freeman. I sold my IF25 because it was terribly green at high CCTs and at that time I still didn’t know how reflow an led. Please post the measurements if you swap for other leds

The previous one I put sliced LH351D in it (I posted it in the mod today thread)

In the next one I will try to put E21A in it, 2000-4500K

Blggg
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Thank you very much.

After I learnt how to reflow leds, I had a thought of getting LH351D for popping in IF25, but staff from Sofirn told me that the dome of LH351D is too big for the optic.

The sliced leds must have work great. Tints are so rosy. This is probably going to be one of my favourite light.

Firelight2
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I love the tint ramping in the IF25. Great light!

However, the light is too big for me for EDC. I wish I could remove the driver and put it in an Emisar D4. Unfortunately, it’s too wide.

thefreeman
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Too thick too, it’s a double PCB :

Sofirn IF25 driver

I also wish for a smaller tint ramping driver.

Blggg
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Has anyone tried swapping SST20 for domed LH351D? I’ve been thinking of popping in the 5700k and 2700k but still doubt if the led really won’t fit the optic as I was told.

thefreeman
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Blggg wrote:
Has anyone tried swapping SST20 for domed LH351D? I’ve been thinking of popping in the 5700k and 2700k but still doubt if the led really won’t fit the optic as I was told.

The LH351D dome fits but there is barely any play, in practice since the four LEDs wont be perfectly placed I doubt it will fit. Maybe if the LEDs could be perfectly placed by reflowing with the optics on them, but will it survive the heat ?

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I swapped some LH351D 5000k 90cri into my IF25A successfully. I haven’t noticed any issues with turbo or otherwise.

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