[Interest Check] Sofirn SP10R - deep red AA/14500 EDC

137 posts / 0 new
Last post
Lightbringer
Lightbringer's picture
Offline
Last seen: 1 hour 40 min ago
Joined: 08/30/2016 - 14:12
Posts: 12135
Location: nyc

Yeah, I would’ve considered 2A or even a bit lower as the “sweet spot”.

Rather than looking at the droop in the parabola, compare it with a straight line extended from the origin at the line’s initial slope. Then compare the droop vs “ideal”. That difference is where you’re putting out more heat and less light.

So if at one point (say, 2A to 3A) you’re putting in 50% more power but only getting 30% more light, that missing 20% is just being burned off as excess heat. (Addendum: that’s excess heat, not just heat from “regular” current powering the LED.)

If the LED can handle it, it might be worth it, but if it’s sensitive to heat and/or overcurrent (red, UV, etc.), lower would be better.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

iamlucky13
Offline
Last seen: 2 hours 41 min ago
Joined: 06/22/2018 - 09:18
Posts: 844
Location: USA
Lightbringer wrote:
iamlucky13 wrote:
As long as it’s a parachute that doesn’t weigh anything or take up any extra space, and most importantly, does not deploy when I don’t want it to, I don’t see a problem.

And hey, that’s fine. I just said that I’ll pass, maybe others will, too, but I’m not holding a gun to anyone’s head.

I got my WK30 which does red just fine. And if I really wanted to, I could whip up a few red S2+ shorties, too.

But as you pointed out (and as I’ve said /ad nauseam/), code costs nothing, which is why so many lights have so much useless crap stuffed into the UI, even if the hardware’s lacking. Just check what’s sold on Amazon…

I guess the key point was only that it doesn’t spoil the light. I get that you don’t even want it there to stumble upon, but most significantly, this doesn’t sound like a light you need – it’s more of an “if this light gets everything right, I’m interested, but since it’s only loose interest, that one annoying feature is enough to count me out.”

Lightbringer
Lightbringer's picture
Offline
Last seen: 1 hour 40 min ago
Joined: 08/30/2016 - 14:12
Posts: 12135
Location: nyc
iamlucky13 wrote:
I guess the key point was only that it doesn’t spoil the light. I get that you don’t even want it there to stumble upon, but most significantly, this doesn’t sound like a light you need – it’s more of an “if this light gets everything right, I’m interested, but since it’s only loose interest, that one annoying feature is enough to count me out.”

Pretty much. Like I said, I got my WK30s and Artemis if I need red light, even my HS-801s if inclined to dig ‘em out.

Rewinding a bit, when lights were easy to mod, it wouldn’t be much to just throw in a different driver to get what I wanted. Now, with lights having pretty much custom drivers, sideswitches (wired, satellite-board, whatever), modding is a no-go, at least for me. So unless I get it off-the-shelf pretty much the way I want it, I’m either going to be stuck with a UI that pisses me off (even only occasionally), or I just pass on it entirely and save myself the ag.

In this case, yeah, a red light is a pretty specific niche item, so unless I know it’s not going to piss me off, I’d just give it a pass. Personally, I don’t see what’s wrong with low-high and nomem, but adding firefly would be something extra, and, well, that’s it. I wouldn’t want anything beyond that, because a red light isn’t going to be anyone’s EDC, so the light shouldn’t try to be that.

Again, that’s just my opinion. Anyone wants candle-mode or whatever, hey, have at it…

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

ibeQuint
Offline
Last seen: 2 weeks 15 hours ago
Joined: 10/26/2016 - 00:42
Posts: 12
Location: Arizona

Interested!

2Ace
Offline
Last seen: 3 weeks 8 hours ago
Joined: 05/03/2015 - 14:56
Posts: 59

Interested

sfrederik
Offline
Last seen: 1 month 1 week ago
Joined: 02/10/2019 - 06:46
Posts: 2
Location: Germany

Interested in two.

Especially the firefly and low light modes should be reprogrammable. If they got too low / too bright, they would not be usable for close range usage. Mode Memory should be choosable (or no at all and then allways started with lowest mode). Preserving night vision would be the main feature for me. Thank You.

Yours Frederik

d_t_a
Offline
Last seen: 18 hours 11 min ago
Joined: 08/04/2017 - 23:58
Posts: 1974
Location: Manila, Philippines

Interested in 2.

Alen
Offline
Last seen: 1 day 11 hours ago
Joined: 04/03/2012 - 08:26
Posts: 354
Location: Italy

Lux-Perpetua wrote:

djozz wrote:
[…] So my recommendation for a sweetspot would be at most 2A instead of 3.

Yes, that makes total sense and SP10R will most likely have a small margin for thermal transfer away from the LED. So, my recommendations to Sofirn for testing would look like this. I hope this is a reasonable mode spacing.


 


Firefly: 0.2lm (I=6-7mA)


Low: 2-3lm (I=25mA)


Medium: 30lm (I=250mA)


High: 100lm (I=800mA)


Turbo: 225lm (I=2.000mA)


Why not ramping UI?
GERFlash
Offline
Last seen: 1 week 19 hours ago
Joined: 06/13/2020 - 11:41
Posts: 3
Location: Germany, Schleswig-Holstein

Interested!

ReManG
Offline
Last seen: 7 hours 1 min ago
Joined: 04/25/2015 - 22:52
Posts: 2592
Location: Between the Mexico's

Interested in one.

Barkuti
Barkuti's picture
Offline
Last seen: 44 min 55 sec ago
Joined: 02/19/2014 - 14:46
Posts: 5266
Location: Alhama de Murcia, Spain

Interesting. 2A is fine and matches the manufacturer's absolute maximum rating. If the heat path in the flashlight is good maybe you could drive it a little bit harder without issue, although maybe the meat of the matter is in the boost driver when operating with Ni-MH and alkalines. Question

I remember having built a custom dedomed red XP-E2 SK98 (with decently shelved pill) driven at a hair above 2A, and it seemed to handle the heat well (and it certainly is a lot more impressive than the same host with stock driver and a blue XP-G3, could re-check this just a while ago). 

The Light Innocent I am

Deleting a post and redoing it causes the forum thread answer notifications to become invalid. Thus, if you need to change your just published post, edit it. Thanks.

Please avoid quoting lenghty posts, namely with nested quotes. Trim the quote down to the essential. Helps with forum neatness and legibility. Thanks.

Localized AliExpress links mess up with the language setting of whoever clicks or taps on them. While this is a fault of the AliExpress system, turning localized links into global links helps and is easy; just change the locale letters in the url for www. Example:

https://es.aliexpress.com/item/bla-bla-bla.html turns into https://www.aliexpress.com/item/bla-bla-bla.html. Thumbs Up

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी

Alen wrote:
Why not ramping UI?

Valid question. Ramping was never part of the smaller AA/AAA Sofirn lights and it would mean a considerable break in consistency. However, there is a project ongoing to developing an SP10S Andúril version, providing the full potential of flexibility. I don't think Sofirn wants to put too much development work into SP10R since they have some more cool things about AA and AAA lights in mind, coming in the future. So, looking at things from a cost-wise side, keeping the UI more or less as is and simple, should result in both fast market launch and reasonable pricing.

By the way, talking about keeping things simple and (not) consistent Silly .... Barry and I have talked a lot back and forth about using strobe modes in SP10R. We discussed the (obsolete) SOS mode, the beacon mode and of course the bike strobe mode. However, in the end we came to the conclusion that it's best for a deep red EDC like SP10R to not use any strobe modes at all. Bottom line so far: SP10R will come without any strobe modes.

Luminous and wired, we'll be glowing in the dark.

Lightbringer
Lightbringer's picture
Offline
Last seen: 1 hour 40 min ago
Joined: 08/30/2016 - 14:12
Posts: 12135
Location: nyc

Woohoo! Interest rekindled. LOL

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी
Glad to have you back on board, Lightbringer. Cool Thumbs Up

Luminous and wired, we'll be glowing in the dark.

Minocc
Minocc's picture
Offline
Last seen: 8 hours 18 sec ago
Joined: 09/05/2017 - 09:01
Posts: 90
Location: The cheese-filled suburbs of Wisconsin

I am interested in this light.

hodor
hodor's picture
Offline
Last seen: 7 hours 37 min ago
Joined: 07/11/2018 - 03:58
Posts: 915
Location: UK
Lux-Perpetua wrote:
SP10R will come without any strobe modes

I think this is a wise decision Thumbs Up

TimMc
TimMc's picture
Offline
Last seen: 2 hours 11 min ago
Joined: 06/26/2020 - 02:22
Posts: 89
Location: Australia
Lux-Perpetua wrote:
SP10R will come without any strobe modes.

OK Thumbs Up

mountainair26
mountainair26's picture
Offline
Last seen: 17 hours 20 min ago
Joined: 09/10/2016 - 18:10
Posts: 225

Very interested. I love the xp-e2 photo red version and can only think the SST-20DR will be better. Even if it’s similar, I used mine today and they’re great lights. Thanks for making this happen.
Is there any point in the photo red xp-g3 and a reflector for a tiny flooder?

goshdogit
goshdogit's picture
Offline
Last seen: 2 hours 3 min ago
Joined: 12/03/2015 - 21:28
Posts: 1194

I’m interested. Thanks!

Chronovore
Offline
Last seen: 13 hours 7 min ago
Joined: 10/12/2019 - 13:24
Posts: 180

Interested

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी

mountainair26 wrote:
(...) Is there any point in the photo red xp-g3 and a reflector for a tiny flooder?

Actually, Barry and I were thinking already what other Sofirn flashlight could maybe benefit from SST20-DR. I suppose IF25A could be a nice host for a quad array with around 1.000lm deep red light but it takes a different (constant current) driver, ideally aiming 8A of regulated maximum current.

Luminous and wired, we'll be glowing in the dark.

Gunga
Gunga's picture
Offline
Last seen: 25 min 16 sec ago
Joined: 11/28/2014 - 16:56
Posts: 1873
Location: Vancouver, Canada

I’m interested.

Barkuti
Barkuti's picture
Offline
Last seen: 44 min 55 sec ago
Joined: 02/19/2014 - 14:46
Posts: 5266
Location: Alhama de Murcia, Spain

Lux-Perpetua wrote:
… I suppose IF25A could be a nice host for a quad array with around 1.000lm deep red light but it takes a different (constant current) driver, ideally aiming 8A of regulated maximum current.

Driving leds in parallel is 0K but not the best approach; over time the sharing of current among leds could unbalance. There are nice boost drivers available who could handle a quad in series at 2A with ease.

The Light Innocent I am

Deleting a post and redoing it causes the forum thread answer notifications to become invalid. Thus, if you need to change your just published post, edit it. Thanks.

Please avoid quoting lenghty posts, namely with nested quotes. Trim the quote down to the essential. Helps with forum neatness and legibility. Thanks.

Localized AliExpress links mess up with the language setting of whoever clicks or taps on them. While this is a fault of the AliExpress system, turning localized links into global links helps and is easy; just change the locale letters in the url for www. Example:

https://es.aliexpress.com/item/bla-bla-bla.html turns into https://www.aliexpress.com/item/bla-bla-bla.html. Thumbs Up

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी

Barkuti wrote:

Driving leds in parallel is 0K but not the best approach; over time the sharing of current among leds could unbalance. There are nice boost drivers available who could handle a quad in series at 2A with ease.

Gracias Barkuti. Do you have a link to one of these drivers? I'm not sure if Sofirn has ever used 3rd party drivers in their lights, though. Anyway, I will be glad to talk about this with them.

Luminous and wired, we'll be glowing in the dark.

mortuus
mortuus's picture
Offline
Last seen: 19 hours 59 min ago
Joined: 12/16/2014 - 09:33
Posts: 2777
Location: Sweden

I hope this will be crazy overdriven the emitter if possible thanks.

...where Frugal meets with Flashlight!

              つ ◕_◕ ༽つ

Barkuti
Barkuti's picture
Offline
Last seen: 44 min 55 sec ago
Joined: 02/19/2014 - 14:46
Posts: 5266
Location: Alhama de Murcia, Spain

Lux-Perpetua wrote:
… Do you have a link to one of these drivers? I'm not sure if Sofirn has ever used 3rd party drivers in their lights, though. Anyway, I will be glad to talk about this with them.

A couple examples:

Please note that since deep red emitters have quite a bit lower Vf, driving them the actual current ouput of these boost drivers could be increased to at least 3+A without difficulty. And much beyond if they were to change stuff like Agnelucio. Smile

Edit.- Remember: boost driver, all emitters in series receive the full current. You must think in terms of power. At 3+A driving current total Vf could be close to 10V and the drain from the battery will be noteworthy. No less than 10 or 15 A rated batteries, just in case.

Whether in this case they decide to use a driver like this or not is up to them, but it's time for they to get better buck and boost drivers. They also need some good buck ones, really.

Tue, 08/18/2020 - 14:53

The Light Innocent I am

Deleting a post and redoing it causes the forum thread answer notifications to become invalid. Thus, if you need to change your just published post, edit it. Thanks.

Please avoid quoting lenghty posts, namely with nested quotes. Trim the quote down to the essential. Helps with forum neatness and legibility. Thanks.

Localized AliExpress links mess up with the language setting of whoever clicks or taps on them. While this is a fault of the AliExpress system, turning localized links into global links helps and is easy; just change the locale letters in the url for www. Example:

https://es.aliexpress.com/item/bla-bla-bla.html turns into https://www.aliexpress.com/item/bla-bla-bla.html. Thumbs Up

maildroid
Offline
Last seen: 3 days 6 hours ago
Joined: 04/06/2016 - 20:32
Posts: 323
Location: nc new bern

Interested

"Let your lite shine "

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी

Barkuti wrote:

Lux-Perpetua wrote:
… Do you have a link to one of these drivers? I'm not sure if Sofirn has ever used 3rd party drivers in their lights, though. Anyway, I will be glad to talk about this with them.

A couple examples:

[...]

Whether in this case they decide to use a driver like this or not is up to them, but it's time for they to get better buck and boost drivers. They also need some good buck ones, really.

Agreed!

As much as I would like Sofirn to build more lights using buck, boost or high constant current drivers, I see some (market) constraints that counteract this plan. So far, their largest target group is what I call "standard customers" (not those flash'o'maniacs like us), people who want to get a decent, powerful light for a very competitive and reasonable price, regardless of tint and CRI. I'm not saying low-budget because that would be insulting, looking at those myriads of crapfire lights for less than $ 10.00 that you can find on Amazon, eBay, AliExpress etc.. So, let's just state they aim for customers who are willing to spend $ 30 - $ 80 for a flashlight. Sofirn is really good in this market segment, getting better and better. If we now ask them to build more lights with more efficient, more complex and - most important - more expensive components, they will need to enter a new pricing level that is already taken by brands like Fenix, Acebeam, Olight etc. pp.. They will also need to put more resources in driver development (assuming they want to keep on using their own drivers). All of this needs to fit into their long-term business strategy. My hope is, if we keep asking, begging and longing for better drivers long enough, they will eventually decide to step up with a "premium" product line including BLF's most wanted features.

Luminous and wired, we'll be glowing in the dark.

Sean Ingram
Sean Ingram's picture
Offline
Last seen: 2 weeks 10 hours ago
Joined: 04/15/2019 - 07:06
Posts: 16

Can I assume it’ll be significantly brighter with lithiums like the other one?

About the strobe; I never needed it so I’m fine without it.

“click for ON/OFF and hold to cycle” That is a welcome change.

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 3 hours 2 min ago
Joined: 03/01/2018 - 04:39
Posts: 2325
Location: Germany, 德国, ドイツ, Германия, जर्मनी

Sean Ingram wrote:
Can I assume it'll be significantly brighter with lithiums like the other one?  [...]

That's yet to find out but I expect a truly visible difference between SP10R and C01R on full power. While Sofirn applied a bit more than 1A on C01R's XP-E2 photo red (on high mode), SST20-DR can possibly driven with 2A (or even more) on full power. In the end, the thermal design of the SP10S host will have a significant impact how far Sofirn can push the limits. As much as I love hotrod lights that can burn your skin (at own risk), there will need to be a reasonable balance between shorting the lifespan of the LED, having a safe maximum temperature and draining the battery.

Luminous and wired, we'll be glowing in the dark.

Pages