Video comparison - Sofirn D25L vs D25S

27 posts / 0 new
Last post
Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand
Video comparison - Sofirn D25L vs D25S

Hopefully this makes it easier to decide between the two models


Edited by: Funtastic on 06/27/2021 - 04:01
Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand

Re-uploaded after youtube corrupted the file. Must need to copy the video off my external first

mitsuki08
Offline
Last seen: 19 hours 40 min ago
Joined: 03/08/2019 - 05:36
Posts: 358

Thanks for sharing the nice comparison shots. What camera are you using?

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand

Sony A6500 with Sigma 16mm f1.4 lens. One of the best low light lenses available

Flashaholic on YouTube has the same setup, but he has a gimbal. I’d like to get one, but they can cost a wee bit

pennzy
pennzy's picture
Online
Last seen: 13 min ago
Joined: 12/10/2017 - 19:45
Posts: 4159
Location: United States , Pa.

Do you notice the higher CRI? I can’t tell from the video.

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand
pennzy wrote:
Do you notice the higher CRI? I can’t tell from the video.

Barely noticeable. You can see okay on the 3rd side by side with the leaves on the ground.

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand

I decided to remain with the D25S as it’s not worth the loss in brightness for not much difference in colour. I’d rather 4000K if anything on a headlamp

max
max's picture
Offline
Last seen: 52 min 14 sec ago
Joined: 02/17/2014 - 18:55
Posts: 462
Location: Austin, TX

Thanks for the comparison video PTD.  I'd stick with the SST40 for the extra lumens, it really shows up in your video, and I can't tell that the higher CRI of the LH351D does that much, for me anyway.

 

 

 max

flightless22
flightless22's picture
Offline
Last seen: 17 hours 31 min ago
Joined: 11/19/2018 - 12:07
Posts: 592
Location: California

The colors look washed out with SST40, I definitely prefer the LH315D on a side by side basis. With that said I was using stock D25S for an hour or so and it got barely warm, I think I had it on medium, the brightness was totally usable. Yesterday I used Skillhunt H03 with swapped in 219bs and after about 40 minutes it was sizzling hot, even the batteries were warm. Angry For the odd jobs that are agnostic towards ugly tints, I’m picking the D25S over modded H03 from now on.

Does the LH351D get noticeably warmer than SST40?

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand

flightless22 wrote:
Yesterday I used Skillhunt H03 with swapped in 219bs and after about 40 minutes it was sizzling hot, even the batteries were warm. Angry For the odd jobs that are agnostic towards ugly tints, I’m picking the D25S over modded H03 from now on.

Does the LH351D get noticeably warmer than SST40?

Skilhunt’s H series only has a timed stepdown on T1, so obviously this needs taking into account if anything is swapped in.

I haven’t tested whether the LH351D gets warmer. I record a demo and then sell the lights off at a reduced price. I never keep anything I make videos for unless it’s gifted for a review. Even then they just sit there waiting to be used in another beamshot comparison.

It’s a bit unusual owning a flashlight business yet have little interest in actually owning any lights, all I see is money that can be made

TexasToasted
TexasToasted's picture
Offline
Last seen: 1 week 4 days ago
Joined: 10/25/2012 - 08:48
Posts: 1362
Location: Texas Gulf Coast

In the last comparison, I only saw you ramp up to level 4, not 5, with the D25L. Unless you started at level 2. I only saw 3 increases in brightness.
On my OLED laptop screen, I can easily see the difference in the colors between the two LEDs. I have two of the D25S- my favorite headlamp, but I’m still buying one of the D25L lights.

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand
TexasToasted wrote:
In the last comparison, I only saw you ramp up to level 4, not 5, with the D25L. Unless you started at level 2. I only saw 3 increases in brightness. On my OLED laptop screen, I can easily see the difference in the colors between the two LEDs. I have two of the D25S- my favorite headlamp, but I’m still buying one of the D25L lights.

Turn your brightness up and look closely… it jumps up 4 times. Slow the playback down and you’ll see the lowest level for a split second

Dark trees and green grass absorb much more light which clearly shows off the difference between the two in terms of brightness

When the D25S first starts it’s 1228 lumens, the D25L is 860 which is almost 400 lumens. That’s quite a big difference and it shows quite well in that last comparison with all the dark greenery

darosk
darosk's picture
Offline
Last seen: 2 days 5 hours ago
Joined: 10/06/2019 - 22:03
Posts: 278
Location: Sabah, Malaysia

Good comparison. Difference in CRI is negligible, from the looks of it. Nice to see a side-by-side.

My Lights (Updated: June 20, 2021)

CR888
Offline
Last seen: 1 month 3 weeks ago
Joined: 01/13/2021 - 08:31
Posts: 338
Location: Australia

Maybe the CRI difference is more noticeable with the human eye actually using the light? I dunno. But these headlamps look really nice quality, especially for the money compared to the 2 Olights models I have. The Perun2 is 2500lm but it’s bulky/heavy 21700, the other little Olight Array is nice & light but only 400lm. I think I’d much prefer one of these, I’ve been happy with all my Sofirn product.

CR888

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand
CR888 wrote:
Olight Array is nice & light but only 400lm. I think I’d much prefer one of these, I’ve been happy with all my Sofirn product.

How long does the Olight Array hold 400 lumens for? The D25L is only 421 lumens on High and a Turbo of 816 for 5 minutes. May not be too attractive if you take that stepdown into account for long use

Funtastic
Funtastic's picture
Offline
Last seen: 2 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2336
Location: New Zealand

OP updated with two photos I took last night Smile

TexasToasted
TexasToasted's picture
Offline
Last seen: 1 week 4 days ago
Joined: 10/25/2012 - 08:48
Posts: 1362
Location: Texas Gulf Coast
Funtastic wrote:
TexasToasted wrote:
In the last comparison, I only saw you ramp up to level 4, not 5, with the D25L. Unless you started at level 2. I only saw 3 increases in brightness. On my OLED laptop screen, I can easily see the difference in the colors between the two LEDs. I have two of the D25S- my favorite headlamp, but I’m still buying one of the D25L lights.

Turn your brightness up and look closely… it jumps up 4 times. Slow the playback down and you’ll see the lowest level for a split second

Dark trees and green grass absorb much more light which clearly shows off the difference between the two in terms of brightness

When the D25S first starts it’s 1228 lumens, the D25L is 860 which is almost 400 lumens. That’s quite a big difference and it shows quite well in that last comparison with all the dark greenery

Thanks, I watched again at full screen and I see it now.

CNCman
CNCman's picture
Offline
Last seen: 15 hours 24 min ago
Joined: 04/07/2018 - 10:10
Posts: 1234
Location: Mississippi Gulf Coast

Nice video, Thank You for taking time to put it all together Thumbs Up
I need another head light that is not too bright for close up work and better CRI. So a D25L will be better for me. Wink
.

Caleb
Caleb's picture
Offline
Last seen: 4 days 21 hours ago
Joined: 03/13/2016 - 01:28
Posts: 738

Excellent comparison. Thank you.

I think I’ll get the L version as my main use will be arms length detail work, where high CRI may be more beneficial.

Further out, I can switch to a handheld light designed for more throw.

(I saw these for around $16 before. I wonder if coupon codes available.)

cannga
Offline
Last seen: 8 hours 9 min ago
Joined: 01/04/2022 - 15:37
Posts: 18
Location: Palos Verdes, CA

Very nice review. Just to add to the data base: Beam shots on white wall of 3 headlamps – Sofirn D25S, Slonik (latest USB-C $35 model), and Sofirn D25L. I started with brightest mode on all 3 headlamps and took pics at intervals thereafter. From the very start, the Slonik has brightest hot spot among the 3, then D25S, then D25L. This particular picture is about 20 minutes after start, when all 3 lights have stepped down to a stable level.

Picture taken with Canon 24-70, WB set at 5000k, shot in raw & developed w/ Capture 1 software, which allows me to see objective brightness level at any point on the picture. Added some subjective comments based on my use of the headlamps also (daily walk on an unlit road).

I am keeping the D25L because of the high CRI and the nice Samsung led Smile . Its warm tone adds depth and color accuracy is wonderful. But it’s not as bright as the other 2 lights. For the walk I prefer the the brightness of D25S and even better, the brightness & throw of the Slonik. The D25S has a slight green tint that is made more obvious only when you put it next to the D25L. Also D25S is very clearly brighter than D25L.

If I have to keep 1 light among these 3, it would be the D25L because it’s one of the very few headlamps (maybe the only one?) with the high CRI Samsung led. But that’s partly because I have other headlamps (Fenix and Coast) that throw far. One last point: Slonik and Sofirn have identical housing (except Slonik has USB-C, Sofirn Micro USB Sad ) so it seems these 2 lamps are made by same company. Hope this helps.

NorthernHarrier
NorthernHarrier's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 11/30/2018 - 12:05
Posts: 607
Location: Eastern USA

I just received my D25L yesterday. This is my first headlamp that I will use as a headlamp (I’ve had a Nitecore HC30 NW and Zebralight H600W Mk II for years, but haven’t used them on my head), and I am very impressed. I was worried it might feel too heavy on my head, and I was considering one of the lightweight, cheap headlamps on Amazon instead – but I’m glad I went with this light. The quality and performance for the price are very impressive – as with the other Sofirn light I bought recently, a IF22A. The D25L works perfectly, it charges the Sofirn battery supplied with the light to 3.19V, and it is not uncomfortable on my head. The beam will work very well for my purposes. The headband also works.

I had also considered a Coast headlamp, using the 20%-off coupon they give you for signing up for emails, but there seem to be issues with each model that make them less suitable for me than the Sofirn light. There are many comments in reviews about switches not working or being difficult to use, lights turning on accidentally, and magnets in tailcaps, which I need to avoid.

I appreciate the excellent review above, as well as the beamshot comparison – I looked at the Slonik headlamps and also the D25S, but I wasn’t as confident about the Slonik quality and performance as I was about the Sofirn products. Now I’m tempted to look at getting a Slonik or maybe a D25S…..maybe I can rationalize that I need a backup headlamp. Wink

"However vast the darkness, we must supply our own light." - Stanley Kubrick

cannga
Offline
Last seen: 8 hours 9 min ago
Joined: 01/04/2022 - 15:37
Posts: 18
Location: Palos Verdes, CA

It’s a hobby and we know then there is no logic, just rationalization. Innocent I don’t have need for 5 headlamps either. FWIW I am keeping the Slonik (my night walk) and Sofirn 25L (near field around house). One thing that might help with your decision is the flood vs throw: Slonik is definitely more throwy, Sofirn S is medium-plus throwy, great flood (very bright), and Sofirn L is medium minus throwy, medium flood. Hope I’m making sense here, me and my OCD LOL.

Re. Coast: I love the light, it exudes quality and workmanship and as such a level above Sofirn/Slonik. The quality is a match for Fenix and hence cost is fairly amazing at $45. However, it weighs 8 oz and the only way I could wear it is to sew the headband to a baseball cap and lay the light on the bill of the cap. Other weights:
Sofirn 25L: 4.2 oz, battery 1.62 oz
Slonik w/ USB-C: 4.5 oz, battery 1.55 oz. (odd considering Slonik and Sofirn look identical, and the 3000 mAh Sofirn battery weighs more than the 2200 mAh Slonik battery, maybe it’s the headband)
Fenix HM65R-T: 5 oz
Coast: around 8 oz (I haven’t weighed it yet because it is now on the baseball cap)
Somewhere around 4.5 oz, I could not tolerate heavier lamp.

Keep in mind also all of these headlamps step down. The Slonik for example steps down after 30 minutes to a level about third from highest, which is still good enough and is the reason why I keep it.

NorthernHarrier
NorthernHarrier's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 11/30/2018 - 12:05
Posts: 607
Location: Eastern USA

cannga: thanks for the weight comparison – that is exactly the information I was trying to find. I’m like you – I have a weight limit of what is usable for me. I have to consider the weight of a headlamp, due to neck/spine problems, so I think I would go with the Sofirn D25S as my backkup, given that its weight is probably close to the weight of the D25L. Still, it’s good to know that the Slonik quality is good enough. I saw some reviews of the latest Slonik headlamp design (the ones that look silver on Amazon) that were critical of the design compared to the older version, but I don’t know much about their latest updates.

Have you seen the Boruit headlamps in this style for sale on Ebay? They seem to be labeled HP300 and HP500. The descriptions say they have one round lens with an “XM-L2” LED and two small COB lights with XPE LEDs either to the left and right of the main round lens or on one side of the main lens. They are USB-C rechargeable and have mode memory – but I have no idea what the outputs and runtimes are. The weight of both is claimed to be 73 grams (presumably without battery). I haven’t seen anyone comment on these lights here on BLF, so I was curious about them when I saw them for sale.

"However vast the darkness, we must supply our own light." - Stanley Kubrick

cannga
Offline
Last seen: 8 hours 9 min ago
Joined: 01/04/2022 - 15:37
Posts: 18
Location: Palos Verdes, CA

Slonik has two top models on Amazon, one is $35, black; the other is $45, silver, and is claimed to be a recent upgrade. That $45 silver Slonik is inferior to its less expensive twin in nearly every aspect: aggressive step down that is very dim, captive headband that cannot be removed to be washed, a hard rubber lamp holder (vs solid plastic of others) that bunches up and causes pressure point on forehead, micro USB vs USB C. I don’t understand what Slonik is thinking. That silver lamp deserves all the negative reviews and a reminder that we just can’t trust vendors completely.

Re. Boruit, don’t know about that lamp, but I like the twin lead design for brightness and between the 2 Sofirns and $35 Slonik, I’ve seen the important characters that allow me to choose: thrower, combo bright thrower-flooder, and warm high CRI. BTW it seems Boruit uses 2000 mAh battery, vs Sofirn’s 3000?

Re. the weight, at around 4 oz and up, the pressure point on forehead is just too much for me. I am having trouble dealing with my 5 oz Fenix. And yes D25L and D25S weigh about the same. That 73 gms/2.6 oz of Boruit is surely without battery. The 18650 battery alone averages 45 gms/1.6 oz. I like Sofirn and don’t think you would go wrong with them. Just wishing they had a USB C version of these lamps. I am having some fun nit picking/comparing these lamps, hope you are too.

John-Atwork
Offline
Last seen: 8 hours 42 min ago
Joined: 12/27/2021 - 21:26
Posts: 6
Location: California

Have you tuned them at all, or are they exactly has shipped by Sofirn?

cannga
Offline
Last seen: 8 hours 9 min ago
Joined: 01/04/2022 - 15:37
Posts: 18
Location: Palos Verdes, CA

Exactly as shipped by Sofirn. I tested to check their behavior in my daily walk: max brightness initial setting, then 50 minute walk. Btw, my comments obviously should be in context of headlamps, ie the Slonik’s throw is great but only in context of headlamp comparison. Nearly any flashlight would of course be much superior in terms of brightness and less aggressive step down.

It’s also subjective what’s “best” (personal preference). Somehow I feel safer during a walk to have better throw (to see anything/one lurking ahead of me) than to have better flood (bright around me but darker far ahead). But that could be because I am old. FWIW, I haven’t seen any discussion about this last point but I wonder if a lamp with nearfield bright flood causes pupil to constrict and reduces far field brightness, further enhancing its floody character.

Bottom line, I like both the Sofirn’s and the $35 USB-C Slonik. They compare very favorably to my Coast and Fenix 65. Even though it’s not as bright as others (commonly observed in warm tone, high CRI version of any flashlights) and lacks USB-C, I love the Sofirn D25L Innocent , but all 3 recommended.

NorthernHarrier
NorthernHarrier's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 11/30/2018 - 12:05
Posts: 607
Location: Eastern USA

I’m also using my D25L exactly as shipped by Sofirn. I am also very pleased with the D25L. I might get a lighter-weight headlamp, also, just to have something that I can wear for long periods without feeling it, but the D25L will suit me just fine. It has all the throw I really need in a headlamp, but it is still tempting to get the D25S, because it’s also a great value and will provide some extra throw.

"However vast the darkness, we must supply our own light." - Stanley Kubrick