Sofirn SP70 BLF Edition Development Thread

167 posts / 0 new
Last post
Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

Springs? Will they make much difference? What about a spring bypass? I would definitely prefer a nicer tint, I’m hoping a smooth reflector will extend the reach. My only concern is will it make the hotspot smaller?

“Electricity is really just organized lightning”
― George Carlin

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 7 min ago
Joined: 10/22/2016 - 11:41
Posts: 11827
Location: Houston Texas

Relampago wrote:
Springs? Will they make much difference? What about a spring bypass? I would definitely prefer a nicer tint, I’m hoping a smooth reflector will extend the reach. My only concern is will it make the hotspot smaller?

Bypass springs, gain 1000 lumen according to someone who did it.

The hot spot does not get smaller, but the corona may.

Texas Ace Lumen Tube calibrated with Maukka lights

Click this to go to signature links.

Scallywag
Scallywag's picture
Offline
Last seen: 1 day 6 hours ago
Joined: 01/11/2018 - 22:23
Posts: 710
Location: Ohio, United States

Springs need to be bypassed or GOOD BeCu double springs.

I would not like a sliced LED. I'm fine with a good SMO reflector, but they need to get the inner diameter to match the OP reflector. 

To be honest, there's two things I hate about my SP70 and I love everything else.

  • I hate the UI/driver, and moreover I hate the lack of retaining ring. 
    • This is so annoying because I'm not confident I can make a replacement driver fit.
  • I hate the crappy steel springs. I finally checked, and mine are strongly magnetic. My Olight S1 can hold the entire tailcap by the spring.
    • This is an easy fix though, I can bypass or swap for my Blue springs. 

Personally, I'd want to keep the tail switch, but have it only be a lockout function. That's probably just me, though.

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

I like the tail switch too, and I miss the strobe function. I was using the SP70 last night and I love the amount of light it puts out but I found myself reaching for the SP33 because it was easier to carry. Tonight I’ll take the SP70 to a darker environment and see how it performs against my TC500. I’ll post some shots from last night. I actually use the strobe because we encounter psychos at night and its a quick diffuser of tense situations. Makes the meth heads think twice.

“Electricity is really just organized lightning”
― George Carlin

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

Darkness

SP70

Amutorch TC500

SP33

SP70 is thicc.

“Electricity is really just organized lightning”
― George Carlin

contactcr
Offline
Last seen: 1 hour 55 min ago
Joined: 05/19/2017 - 18:52
Posts: 2847
Location: US

Looks like you might be using auto camera settings. I could be wrong, but if so, it makes it hard to distinguish anything other than the shape of the beam. Relative brightness and tint get corrected a bunch with auto

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

Ya. Samsung Galaxy. Its more of what I actually see when I’m using these at night. The SP70 lights up the tree across the pond with a wider hotspot. More of a comparison between the lights, most of the times we don’t need that much distance. On occasion we’ll catch critters and crazies and that’s where the throw comes in handy.

“Electricity is really just organized lightning”
― George Carlin

the4ds9
the4ds9's picture
Offline
Last seen: 3 months 3 days ago
Joined: 10/28/2017 - 17:06
Posts: 152

I’m happy with my Sofirn SP70. I had been using a Thrunite TN50 for pest control due to its enormous floody beam (meaning no flying pest can escape its beam profile). However, it is proving to be overly thick. I started using the Sofirn SP70 for pest control and its 2×26650 body is a pleasure to hold and clasp. Its beam profile is encompassing enough to keep any flying pest within its sights and has ample throw to keep pace.

On top of all this, Sofirn is reliable. I’ve used several different models of Sofirn and they all keep shining. No blown driver or dead LED; no problem whatsoever! Big Smile

Oh yeah the anodizing is extremely good too, on the Sofirn SP70.

Also one last thing: it was great beamshot comparison such as Relampago above, and also Josh of That Crazy Flashaholic 67 on Youtube that convinced me to contact Sofirn in the original SP70 thread and buy the light for $50 from Amazon. Thank you Relampago and ThatCrazyFlashaholic67 for your beamshot efforts! Party

WTF
Offline
Last seen: 13 hours 17 min ago
Joined: 03/05/2017 - 20:13
Posts: 265

oweban wrote:
Okay so are we thinking wider or deeper reflector? Both would require re-machining of the head piece of the body…

70.2 is just sticking with “wall of light”, right?

Barry wrote in post 57 that Sofirn is considering a new model, not just the existing light with a smooth reflector. They know we will always ask for more lumens and more throw. It’s an xhp 70.2 for now, but putting in a boost driver and a 35 would be easy for them. They already make a single cell boost driven xhp35 C8.

Dale had concerns about the shape of the reflector, said it wasn’t a true parabola. Also was concerned about the glass lens not being thick enough for a light this big, said it would be too easy to crack.

Fixing that means sourcing a different piece of glass and making a new bezel, making them bigger isn’t a big deal.The head is two pieces, it’s possible to use a bigger reflector by just making the bezel end bigger. The main part of the head could remain the same unless it is too small to get the correct shape. What’s easier for them, developing a new reflector or sourcing an off the shelf solution and making it fit?

Getting back to Lux’s list in the op I’d like to see Narsil instead of Anduril, no tail switch, a bigger better smooth reflector, and thicker glass. May as well leave the fet alone, sounds like the odds of getting a fake are too high. What they are using seems pretty good. Since this will likely be a low sales volume light they probably won’t want to do a bunch of emitter options. Let them choose the led and we can swap it out. Dedoming and spring bypasses should be on us as well. Everything else looks good to me.

oweban
oweban's picture
Offline
Last seen: 8 hours 1 min ago
Joined: 02/12/2019 - 06:34
Posts: 788
Location: Sydney AU

Yeah, I like the idea of their C8 XHP35, but I felt the reflector was a little too small to kill it, given what I’ve already got. Thicker glass is always good (also removes the “tink tink” issue that the Astrolux FT03 seems to be having). I don’t know the physics of it, but I assume a deeper reflector without increasing width would still increase throw, but not significantly?

I should do some reading.

Scallywag
Scallywag's picture
Offline
Last seen: 1 day 6 hours ago
Joined: 01/11/2018 - 22:23
Posts: 710
Location: Ohio, United States

oweban wrote:
Yeah, I like the idea of their C8 XHP35, but I felt the reflector was a little too small to kill it, given what I've already got. Thicker glass is always good (also removes the "tink tink" issue that the Astrolux FT03 seems to be having). I don't know the physics of it, but I assume a deeper reflector without increasing width would still increase throw, but not significantly? I should do some reading.

My understanding from various posts on BLF is that the depth of a reflector, beyond a certain point, only alters the amount in and size of the corona compared to the spill. If a reflector is not deep enough (much shallower than SP70), it does significantly affect throw, but beyond that it should be almost entirely an issue of reflector width (and, of course, having the proper curve and focus is always crucial).

Edited to add: https://www.slideshare.net/canfang/led-optics-in-flashlight interesting reference if you'd like some reading. Unfortunately I cannot recall where I found that link. Slide 16 is particularly relevant to this discussion, though.

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

If they go with no tail switch, can the one from the original SP70 be swapped and used?

“Electricity is really just organized lightning”
― George Carlin

Scallywag
Scallywag's picture
Offline
Last seen: 1 day 6 hours ago
Joined: 01/11/2018 - 22:23
Posts: 710
Location: Ohio, United States

Relampago wrote:
If they go with no tail switch, can the one from the original SP70 be swapped and used?

I'd miss mine! 

I don't know how willing Sofirn is to go for a long list of options, but it's what would really satisfy BLF (and part of why Simon/Convoy are so popular here). Opinions vary on SMO/OP, tail switch or not, what the tail switch would do (lockout only or on-when-pressed), what emitter and if it's sliced, even 26650 vs 21700. 

 

Really, the things I'd change would be driver + UI + retaining ring, and probably a ~5000K emitter in at least P2 bin. If my current SP70 had a retaining ring, I'd already have swapped the driver.

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

the4ds9
the4ds9's picture
Offline
Last seen: 3 months 3 days ago
Joined: 10/28/2017 - 17:06
Posts: 152

EDC LOL

Tom E
Tom E's picture
Offline
Last seen: 2 hours 9 min ago
Joined: 08/19/2012 - 08:23
Posts: 12346
Location: LI NY

Scallywag wrote:

Really, the things I'd change would be driver + UI + retaining ring, and probably a ~5000K emitter in at least P2 bin. If my current SP70 had a retaining ring, I'd already have swapped the driver.

Why? I've swapped many a driver with no retaining ring. You saw my pics of the driver? Mine easily re-assembled. The battery tube locks it down, keeps it in place. Easy stuff...

Scallywag
Scallywag's picture
Offline
Last seen: 1 day 6 hours ago
Joined: 01/11/2018 - 22:23
Posts: 710
Location: Ohio, United States

Tom E wrote:
Scallywag wrote:
Really, the things I'd change would be driver + UI + retaining ring, and probably a ~5000K emitter in at least P2 bin. If my current SP70 had a retaining ring, I'd already have swapped the driver.
Why? I've swapped many a driver with no retaining ring. You saw my pics of the driver? Mine easily re-assembled. The battery tube locks it down, keeps it in place. Easy stuff...

Guess I'll have to, then Silly

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

Tom E
Tom E's picture
Offline
Last seen: 2 hours 9 min ago
Joined: 08/19/2012 - 08:23
Posts: 12346
Location: LI NY

Of course it would be better with a nice brass retaining ring. Funny, I just got in a $10 26650 zoomie with side switch, USB charging, bought here. Even this cheap thing had an alum driver retaining ring and fully disassembled easily.

oweban
oweban's picture
Offline
Last seen: 8 hours 1 min ago
Joined: 02/12/2019 - 06:34
Posts: 788
Location: Sydney AU

Thanks Scallywag, I’ll check that link out. Always keen to learn more.

flightless22
flightless22's picture
Offline
Last seen: 1 hour 22 min ago
Joined: 11/19/2018 - 12:07
Posts: 190
Location: California

The proposed specs sound good. I love the look of unanodized body of BLF A6 and Convoy L2, so I like to have that if possible.

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517
the4ds9 wrote:
EDC LOL ![url=https://postimages.org/][img]https://i.postimg.cc/hjXRZmNB/05-A02-B75-02...DDC-C54-AF4-B4-AFE7.jpg[/img][/url]!

Me too. I just wish it had a real strobe like the SP33. Then I could freeze the drunks I encounter.

“Electricity is really just organized lightning”
― George Carlin

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 7 min ago
Joined: 10/22/2016 - 11:41
Posts: 11827
Location: Houston Texas

Relampago wrote:

I just wish it had a real strobe like the SP33. Then I could freeze the drunks I encounter.

Turbo doesn’t work?

Texas Ace Lumen Tube calibrated with Maukka lights

Click this to go to signature links.

Barry0892
Barry0892's picture
Offline
Last seen: 3 hours 33 min ago
Joined: 09/20/2014 - 03:45
Posts: 297

does it mean not so many people want a BLF SP70?

I understand that, there are already 2*26650 lights, or even big 4*18650 monsters. I have to say Sofirn is late. Sad

Find FREE items on my timeline.

Facebook: https://www.facebook.com/barry.lee.984991

WhatsApp: +8615773183209 

contactcr
Offline
Last seen: 1 hour 55 min ago
Joined: 05/19/2017 - 18:52
Posts: 2847
Location: US

I think there have been enough good suggestions for an upgraded version. Not much more anyone can add

mgracia85
mgracia85's picture
Online
Last seen: 4 min 15 sec ago
Joined: 12/01/2017 - 18:35
Posts: 198
Location: East Texas

Barry0892 wrote:
does it mean not so many people want a BLF SP70?

I understand that, there are already 2*26650 lights, or even big 4*18650 monsters. I have to say Sofirn is late. Sad

I’d be interested

I love my wife’s toy poodle

Relampago
Relampago's picture
Offline
Last seen: 1 week 3 days ago
Joined: 04/14/2019 - 11:44
Posts: 517

I don’t know about the 4*18650, but I haven’t seen any standout 2*26650’s. I think the SP70 might be a smaller market because it’s in the middle range of throw and flood. For me its ideal, I like the combination and I’d like it even more with a NW, some BeCu springs and an AR lens.

“Electricity is really just organized lightning”
― George Carlin

Lux-Perpetua
Lux-Perpetua's picture
Online
Last seen: 1 min 37 sec ago
Joined: 03/01/2018 - 04:39
Posts: 1806
Location: Germany, 德国, ドイツ, Германия, जर्मनी

Barry0892 wrote:
does it mean not so many people want a BLF SP70? I understand that, there are already 2*26650 lights, or even big 4*18650 monsters. I have to say Sofirn is late. :(

 

你好巴里,

I got the impression that many people on BLF (and TLF as well) wait for the SP70 BLF edition. I presume the actual interest will depend on what Sofirn is about to improve on the BLF edition. What changes are you going to commit to?

最好的祝愿

Thomas

WTF
Offline
Last seen: 13 hours 17 min ago
Joined: 03/05/2017 - 20:13
Posts: 265

I think the light is still wanted but is not getting much attention as it normally would. It’s been a late spring in North America and people are just getting outside for yard work and recreation.

The FT03 and new Emisar are getting quite a bit of attention. The lantern and FW3A are getting even more attention. Even the C8G seems to be forgotten at the moment, surprising for a boost driven xhp 35 in a C8 at that price point.

Plus the SP70 is an excellent light as is, especially for the price. A little bit of modding seems to really pay off. Maybe tweaking the C8G driver to work with two cells in series and driving an xhp 35 at max would perk some people up. Just need to get the smooth reflector working good.

Scallywag
Scallywag's picture
Offline
Last seen: 1 day 6 hours ago
Joined: 01/11/2018 - 22:23
Posts: 710
Location: Ohio, United States

There are a lot of good suggestions. Proper BeCu alloy springs. Different bin XHP70.2. Anduril or NarsilM driver. 

Sofirn's response to these suggestions would be nice.

But, it's BLF. I'll just mod it while I wait.

EDC Rotation: ZL SC62 | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 
EagTac D25C Ti | DQG Slim AA Ti | UF-T1 by CRX | Olight S1 | Klarus Mini One Ti
L6 XHP70.2 P2 4000K FET+7135 | Jaxman M8 | MF02 | Jaxman Z1 CULNM1.TG | Blue S2+ w/ ML Special
In-progress: Supfire M6 3xXHP50.2 
Others: Nitecore EC23 | Nebo Twyst | Streamlight ProTac 1AA | TerraLux LightStar 100

djozz
djozz's picture
Offline
Last seen: 47 min 12 sec ago
Joined: 09/07/2012 - 17:04
Posts: 16001
Location: Amsterdam

Barry0892 wrote:
does it mean not so many people want a BLF SP70?

I understand that, there are already 2*26650 lights, or even big 4*18650 monsters. I have to say Sofirn is late. Sad


As said above, quite a few people are waiting on the BLF-edition.

Sofirn is not late with the SP70, a 2*26650 light like the SP70 is unique thusfar because of the size of the reflector. It is substantially larger than the Convoy L6 reflector and will potentially throw a lot better. But the size of the reflector of the SP70 still fits the body size and the SP70 is therefore a very managable flashlight, unlike the BLF GT that is too chunky to carry for many people.

If the SP70 gets a well-made smooth reflector (perhaps a bit deeper than the current OP reflector?, but that requires re-designing the head), and does a good job on focussing the led inside the reflector, and keep the other current qualities of the SP70, I’m sure the BLF edition will be very popular.

Nicolaas
Offline
Last seen: 2 weeks 6 days ago
Joined: 10/31/2012 - 15:38
Posts: 456
Location: Netherlands

djozz wrote:
Barry0892 wrote:
does it mean not so many people want a BLF SP70?

I understand that, there are already 2*26650 lights, or even big 4*18650 monsters. I have to say Sofirn is late. Sad


As said above, quite a few people are waiting on the BLF-edition.

Sofirn is not late with the SP70, a 2*26650 light like the SP70 is unique thusfar because of the size of the reflector. It is substantially larger than the Convoy L6 reflector and will potentially throw a lot better. But the size of the reflector of the SP70 still fits the body size and the SP70 is therefore a very managable flashlight, unlike the BLF GT that is too chunky to carry for many people.

If the SP70 gets a well-made smooth reflector (perhaps a bit deeper than the current OP reflector?, but that requires re-designing the head), and does a good job on focussing the led inside the reflector, and keep the other current qualities of the SP70, I’m sure the BLF edition will be very popular.

Good quality smooth reflector, shaved XHP 70.2 @ 5000K, SS bezel, good driver with easy UI………………………..yes please.
My Keppower 26650 / 6000mAh are just waiting for this beauty to arrive. Thumbs Up Thumbs Up Thumbs Up

Cheers,
Nico

Pages