[Technical discussions] Sofirn SP35 - SST40, 21700 size, buck driver

Based on the sp35?

No idea if they mixed them, good question.

Here they mention the SP35T so knew something was on its way

Yeah, definitely was the one on the left. Quite a shame as it makes the beamshots in my video review useless now.

Yes, mine looks like left too.

A little bummer really, if anybody knows if we can get replacement reflectors that would be neat :smiley:

What’s wrong with the one on the left? Just looks floodier to me.

With the old reflector the transition from spot to spill is not that smooth and looks rather unpleasant. Also you get a very noticeable green ring around the spot, which you can notice in the comparison shots above.

Here is mine at closer range:

https://i.imgur.com/q8XalbG.jpg

At low to mid brightness the “corona/ring” surrounding the hotspot does look a bit greenish too on my early SP35 unit.

I suppose Sofirn can send updated reflector when requested.

I asked for a new reflector for SP31v2.0, since the ones I got had a ‘humid’ reflector (and reflectors can’t be wiped). Sofirn sent a new SP31v2.0 reflector after I requested (had to remind a few times)…

SP31v2.0 with “humid” reflector vs one that has been replaced with a newly sent reflector

Sofirn has the pocket SP35 pocket clip for sale standalone… Mentions it’s compatible with the SP35T as well. So it’s likely real and soon to be here. I just hope the tailcap can be purchased separately and work on the original. It’d be nice to have the option.

I think the driver would have to be modified to not use “soft power,” and illuminate/be “on” any time there is current available.

For example, the SP31 and SP32 are very similar, with the major difference the tail switch on the former.

But with the latter, while it will retain mode memory, the light will stay off after the circuit is broken by unscrewing the tail cap, then tightening it again. To turn it on again requires using the electronic switch.

Maybe they’ll also make other slight modifications with the T, like they did with those two.

I have installed SST40 5000K from Convoy and beam lopks much better. Hotspot and corona is now one color instead of bliish center and yellowish corona. Now i’m thinking to install Osram CULPM1.TG...

SP35 without stepdown version is availble on amazon.com now!

Grap a 10% off coupon to save money!

https://www.amazon.com/Rechargeable-Flashlight-Handheld-Included-Pocket-Sized/dp/B08QR1VD4V

Does anyone have runtime graph for version with temp regulation?

They’ll want to exhaust their current batch before they make the next batch

The ATR version is listed as pre-order status on the site, so it probably hasn’t been released yet.

The non-ATR version was low stock as of 18-Feb, and replaced with the aforementioned around 20-Feb, directing those who still desired it to AMZ US and DE, then changed again at some point to US only.

Personally, I had one on order at sofirnlight.com, that was still “awaiting shipping,” but after notice that AMZ US had received stock of the non-ATR version (their orders had been shipping from CN), I hedged my bets, cancelled that order, re-ordered from AMZ, and received it a day later. At that time, AMZ had limited stock as well, which added a sense of urgency, but it appears that has been replenished.

I wanted to ensure acquisition of the non-ATR version, and that was the best, and now, seemingly only remaining way to do so, albeit at a slightly higher cost with a smaller discount and sales tax added. Whatever remaining stock of the non-ATR version exists appears to be in AMZ’s possession.

I was also expecting to receive the 4000mAh cell, but pleasantly surprised that the kit contained the 5000mAh cell. It also has the revised reflector.

In informal usage, running on high mode does cause the head to heat up noticeably, but still tolerably to hold with bare hands, so I have no regrets.

Hi
We now have a new version of SP35 with ATR, which is different from the previous SP35. Are you interested in testing these two flashlights and compare the differences between the two. This test is free. Please contact me if you are interested.

I’m reviewing the new model with ATR, hopefully that’ll be sent this week from my contact.

Sofirn, if you installed an Osram CULPM1 in the SP35 it would make an excellent pocket thrower

...or maybe Luminus SFT-40 as a nice compromise between Boost HX and SST-40.

or that, yes. I see Convoy will be using it soon

Hi
We now have a new version of SP35 with ATR, which is different from the previous SP35. Are you interested in testing these two flashlights now and compare the differences between the two. We can send you one from an independent station and send it for free .

SFT-40 or HX both sound good here for throw. Wish there was a HiCRI SxT40.