BLF Special Light by Sofirn Named SP70

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JasonWW
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ZozzV6 wrote:
4-5000 lumens high is too much I think. MF02 has much more head mass. And the jump from that to 6-7000 is not significant. 3000-3500 lumens ramp max can run until battery dies with slight warming up.

Two things.

1. Earlier you suggested high could be up to 4k lumens. Why have you changed your mind and now think it’s too much?

Btw, I did make the high setting a more ambiguous 2500lm to 4000lm (whatever is practical).

2. This is not using NarsilM v1.2. There is no ramp max below 100%. Sofirns ramping is not that sophisticated.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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Ronin42 wrote:
Sorry if this idea has been addressed.

we have “shorty” versions of small lights. How about a “shorty” (2 cell) version of this with a 1 tube if folks want to run 3 cells


It may be a bit early to talk about different battery tubes. That is something that can easily be machined later on.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

JasonWW
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ZozzV6 wrote:
Ronin42 wrote:
Sorry if this idea has been addressed.

we have “shorty” versions of small lights. How about a “shorty” (2 cell) version of this with a 1 tube if folks want to run 3 cells


It already stated as a 2 cell version. a 2/3 cell driver will raise the driver cost. If somebody need more runtime carry 2 extra battery and problem solved with even more runtime than 3 battery.

It would only raise the driver cost to the person who is buying a 9v buck driver from Lexel or Texas_Ace, etc…

I would not expect Sofirn to build a special driver for 9v use.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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JasonWW wrote:

1. Earlier you suggested high could be up to 4k lumens. Why have you changed your mind and now think it’s too much?

Btw, I did make the high setting a more ambiguous 2500lm to 4000lm (whatever is practical).

2. This is not using NarsilM v1.2. There is no ramp max below 100%. Sofirns ramping is not that sophisticated.

I didn’t changed my mind. that 4000 lumens I mentioned about my MF02 setted up but it is not a huge jump from there to 9000. So anything between 2500 and 4000 for high mode I will be happy. If in ramping they cannot make separate turbo it is also OK but it need thermal regulation.

I know Narsil is not on option sorry for mentioning it again.

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Here is an updated “design concept”.

The side walls are thicker.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

JasonWW
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ZozzV6 wrote:

I didn’t changed my mind. that 4000 lumens I mentioned about my MF02 setted up but it is not a huge jump from there to 9000. So anything between 2500 and 4000 for high mode I will be happy. If in ramping they cannot make separate turbo it is also OK but it need thermal regulation.

I know Narsil is not on option sorry for mentioning it again.


Cool, cool.

I don’t really know what Sofirn is able to program for thermal control. Their newer SP32A v2.0 is a FET driver and is labeled as having Advanced Temperature Regulation (ATR). The C8F is also a pocket rocket. Can someone comment on how it’s thermal protection works? Does it keep the light at safe temperatures, etc…?

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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JasonWW wrote:
Here is an updated “design concept”.

The side walls are thicker.


And I see now it has a working driver because the led glows Big Smile
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JasonWW wrote:

Cool, cool.

I don’t really know what Sofirn is able to program for thermal control. Their newer SP32A v2.0 is a FET driver and is labeled as having Advanced Temperature Regulation (ATR). The C8F is also a pocket rocket. Can someone comment on how it’s thermal protection works? Does it keep the light at safe temperatures, etc…?


They sent me a new version SP32A 2.0 last week so I will try and tell it how it works when I get it.
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The XHP70 is available in some nice tints at 90 CRI, e.g. the XHP70A-01-0000-0D0UJ445G I have in my Acebeam L30. I’d really like to see options like that rather than just focusing on power. There are plenty of lights on the market that have huge output, but not so many that produce really nice light, especially with higher output.

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JasonWW wrote:
Here is an updated “design concept”.

The side walls are thicker.

Looks much better. Is this one gonna be a single emitter or a triple??
Never mind that question… I found the answer in post #1. Single emitter first then possibly triple later. Thumbs Up

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

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JasonWW wrote:
Here is an updated “design concept”.

The side walls are thicker.

Much better, I might make the bottom fin on the right side slightly less deep to improve heat transfer up the head but that is about all that could be done except closer tolerances to the reflector.

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zak.wilson wrote:
The XHP70 is available in some nice tints at 90 CRI, e.g. the XHP70A-01-0000-0D0UJ445G I have in my Acebeam L30. I’d really like to see options like that rather than just focusing on power. There are plenty of lights on the market that have huge output, but not so many that produce really nice light, especially with higher output.

Going backwards to the older xhp70 (instead of the 70.2) would necessitate using an OP reflector to minimize the donut hole which means you loose a lot of throw. I don’t think we should go in that direction.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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/\ . +70.2 . Thumbs Up .. Agreed.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

zak.wilson
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JasonWW wrote:
Going backwards to the older xhp70 (instead of the 70.2) would necessitate using an OP reflector to minimize the donut hole which means you loose a lot of throw. I don’t think we should go in that direction.

Intensity loss from OP reflectors as I recall when comparisons have been available in the same light is usually less than 10%. The change in beam profile and output would have a much more significant impact on throw than an OP reflector would. I’m OK with that though. The XHP70.2 is ugly and I don’t like it. Of course, an OP reflector mitigates that a bit too, so I think it should have one either way.

Ceilingbounce – flashlight testing and runtime graphs for Android

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zak.wilson wrote:
Intensity loss from OP reflectors as I recall when comparisons have been available in the same light is usually less than 10%. The change in beam profile and output would have a much more significant impact on throw than an OP reflector would. I’m OK with that though. The XHP70.2 is ugly and I don’t like it. Of course, an OP reflector mitigates that a bit too, so I think it should have one either way.

On the L6 you loose 20% of the lux between SMO and OP. I have no plans on ever going back to the OP reflector on my light.

The 70.2 does have a somewhat ugly corona, but it doesn’t bother me much anymore. Being able to see much further than I ever could with the old xhp70 is worth the tradeoff.

It seems you would be more happy with a current S70s or L6. Just swap the driver for more output and you are set.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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I’d choose extra throw and a yellow corona over less throw and a donut hole/or heavy OP reflector. Hint: the 80CRI versions of the XHP70.2 are not binned very much lower and produce a way more bearable corona, soft yellow instead of lime.

About developing a 9V driver (and about prematurely deciding for Sofirn what they are and are not capable of), as was communicated to me, Sofirn has recently attracted a few new engineers who worked for major flashlight companies before (I did not get more details than that) so tbey may be more capable than we assume.

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Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

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Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

It would have the potential. During the design phase, they just need to make the driver cavity big enough to later fit a 6v to 12v boost driver. The coils can be a bit tall on those.

Speaking of the driver, nothing has been confirmed. I like the goal of 5000+ lumen, but Sofirn hasn’t said much. Is 5000lm capable with a buck driver? I’m not sure. I know a FET driver can do it and more.

I suppose a 30mm driver would also be a good idea. You could make it smaller, but you limit yourself as far as future buck or boost designs.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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JasonWW wrote:
Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

It would have the potential. During the design phase, they just need to make the driver cavity big enough to later fit a 6v to 12v boost driver. The coils can be a bit tall on those.

Speaking of the driver, nothing has been confirmed. I like the goal of 5000+ lumen, but Sofirn hasn’t said much. Is 5000lm capable with a buck driver? I’m not sure. I know a FET driver can do it and more.

I suppose a 30mm driver would also be a good idea. You could make it smaller, but you limit yourself as far as future buck or boost designs.

A buck driver will be limited to about the same as a resistor modded L6 and at that point it is not in regulation anyways, so it is functioning like a high resistance FET driver with a high drop out voltage.

I don’t think that is enough to reach 5k lumens.

It would be a bit more efficient in the low modes at the cost of peak power though.

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Texas_Ace wrote:
JasonWW wrote:
Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

It would have the potential. During the design phase, they just need to make the driver cavity big enough to later fit a 6v to 12v boost driver. The coils can be a bit tall on those.

Speaking of the driver, nothing has been confirmed. I like the goal of 5000+ lumen, but Sofirn hasn’t said much. Is 5000lm capable with a buck driver? I’m not sure. I know a FET driver can do it and more.

I suppose a 30mm driver would also be a good idea. You could make it smaller, but you limit yourself as far as future buck or boost designs.

A buck driver will be limited to about the same as a resistor modded L6, around ~7-8A in the real world and at that point it is not in regulation anyways, so it is functioning like a high resistance FET driver with a high drop out voltage.

I don’t think that is enough to reach 5k lumens.

It would be a bit more efficient in the low modes at the cost of peak power though.


Good to know.

Here is another question I was trying to figure out. We know a single 70.2 can pull upwards of 18 amps from a pair of 26650, but what kind of limits would we see trying to power 3 of those emitters?

I looked at the tried and true cyan Liitokala 5000mah (2016), but I don’t think they sell those anymore. The black version is still sold and looks like a good performer. 20A continous and 30A pulse.

The Shockli 5500mah black is a newer battery (2017) and it looks like it is a step up. It’s still 20A continous and 30A pulse. Compared to the Liitokala black it has about 0.10 volt less sag at 20A and about 0.15 volt less sag at 30A.

I’m just learning there is a new Shockli 4300mah (2018) light green that looks aimed at even higher drain use. It is 30A continous and 40A pulse. Compared to the Liitokala black it has about 0.13 volt less sag at 20A and about 0.2 to 0.25 volt less sag at 30A. That’s a huge improvement. This looks to be the cell to use for highest performance.

If anyone has heard of any other new 26650 high drains, let me know.

Edit: It looks like the Ijoy INR26650 4200mAh (Black-Yellow) is a match for it.

The highest drain 26650 might be the Golisi IMR26650 4300mAh (Gold) at 35A continous. Wow.

The Golisi blows away the Shockli 5500mah and Liitokala 5000mah black.

Note: This is all data from HKJ.

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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I think gor 2× 26650 one XHP70.2 is enough. Three will be too much drain. Or the triple version need to be almost the same output as single led but floodier and more efficient because every led driven lighter and not lost output so fast because of heat.
Or we need to consider that the triple led version need more battery. Maybe 2×3 18650 in carriers like the GT just 6 battery in total to make grip diameter smaller.

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I’m curious if 3 × 70.2 can maybe pull 30A+ from 2 × 26650.

A pair of 26650 is quite a bit less powerful than 4 × 18650. (I think)

The cubic centimeters of volume are pretty much the same (4 × 18650 and 2 × 26650), but no high end battery company makes the 26650 which puts it at a disadvantage.

DB Custom has a triple 70.2 using 21700 cells. A pair of Samsung 30T 21700 did 48A at turn on and 42A at 30 secs! Shocked

We might be able to get 12000 to 13000 lumen from 3 emitters and 2 × 26650 batteries. About double the output compared to a single emitter. Big Smile

Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch, SMO reflector.

Supfire L5-S thread with XHP70.2, Texas Avenger FET driver, NarsilM v1.0 ramping firmware, 2 x 26350 cells, lighted side switch. My mini L6! 

Thorfire S70S with MTN FET driver, RampingIOS (D4) and custom lighted side switch.

10 NarsilM user videos for BLF Q8, GT, GT70, GT Mini, Astrolux S43 and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices - Headlight List with prices, specs and features

Jaxmnve M1 Stainless 10180 Keychain light Review  - Lumintop ODF30 Review - Sofirn C8F 21700 Teardown and Review, Sofirn SP33 v2 XHP50.2 Review - My Sofirn Q8 Results - Astrolux S43S 219C Test Results - Lumintop GT Mini Test Results

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JasonWW wrote:
We might be able to get 12000 to 13000 lumen from 3 emitters and 2 × 26650 batteries. About double the output compared to a single emitter. Big Smile
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djozz wrote:
Sofirn has recently attracted a few new engineers who worked for major flashlight companies before (I did not get more details than that) so they may be more capable than we assume.

Oh no wonder the recent Sofirn offerings have been such high quality and lumen numbers are not exaggerated like the majority of the bargain Chinese brands on Aliexpress. I wonder if these engineers come from Olight or Acebeam, then maybe we can have even more ambitious projects coming in the future like say, active cooling, similar to the Acebeam X70 but at 1/2 the cost!

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Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

Is 500+kcd possible. I think even the MF02 with the same diameter (or larger) head measures 400+kcd and it runs on 4×18650.

Satan@103TFS
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SKV89 wrote:
Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

Is 500+kcd possible. I think even the MF02 with the same diameter (or larger) head measures 400+kcd and it runs on 4×18650.

MF02 with 84 mm head but seem like Sofirn aim for 90 mm from OP

“ ..A similar size of K70, same 26650 battery tube and same 9cm head ( a little bigger than K70’s head I guess)..”

May be it can be done with good boost driver I hope.

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Agree Jason. About 12000 lumens is a safe option and possible with a triple.
With XHP35HI and 90mm head Ithink 450-480kcd is possible.

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Satan@103TFS wrote:
Hope Sofirn consider the single XHP35 version as a budget 500+kcd after the XHp70.2.

Wouldn’t SST-40 be a better option for a budget thrower?
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Losing interest in this, a slightly improved l6 isn’t that appealing. We should go for a L2 killer instead of just going over old ground.

It would be nice to keep the price grounded in the realms of justifiable as well…

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Mstevens113 wrote:
Losing interest in this, a slightly improved l6 isn’t that appealing. We should go for a L2 killer instead of just going over old ground.

It would be nice to keep the price grounded in the realms of justifiable as well…


There is a bunch of throwers also.
K70, MF02, Klarus, …

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