I bought a whole new light, S41S, after the head re-design. It was not glued. Its now a quad 4000K R90 219c on a mtnelec tiny25 Bistro driver. Much better.
Head redesign? I have not checked into this thread in a few months, maybe give me the short version?
I was actually wanting to do just that myself to compare the CRI of the single tint vs a mixed tint.
Not sure how outdated you areā¦ Here is a quick sum up: a lot of the original SS heads where faulty, mainly because the optics was pushing onto the leds, damaging them. BG acknowledged the issue and got a new head designed and sent back to customers that got faulty ones. Now this ānewā head is available as a stand alone replacement and is part of the actual S41S batch. Itās bezel is not glued anymore.
Short version is all Iāve got since I didnāt really follow it very closely myself, but as I understand it the original design for the head left the optic loose somehow, so that when the bezel was torqued down the optic was prone to twisting and shearing off domes. Maybe the factory knew this and thatās why they were glued originally? I donāt know - thatās speculation.
Regardless enough folks had damaged emitters at delivery that they redesigned the head to hold the optic still (and also sit lower I think) so that the bezel wonāt cause it to twist. And now theyāre no longer glued.
At least thatās my understanding. But I never ordered one of the earlier run lights and just barely followed the whole saga myself. Maybe someone else can correct me if Iāve misrepresented something.
Ah, thanks for the info. What about the normal S41, are they still glued?
wow! this thing is beautiful! :+1:
A minute or 2 in Turbo mode?
Mine steps down to high mode after about 37 seconds in Turbo.
I just got my S14S, the LEDs and lens are 100% okay. No flaws from what I can see. Only minor complaints at all is the knurling is quite aggressive and it pinches the bottom o-ring just a little.
Now if my S41SC and extension tube will get hereā¦ 
I received mine, XP-G3. On a primary inspection the driverās retainer was a little loose, tight.
after reading some of recent post i notice thereās alot of problem with this light. what do you guys thinkā¦.buy or wait? any advice? 
At this point I think its a buy. I waited for the issues to get ironed out myself and the light I received a few weeks ago has no issues to speak of. Iāve seen others post the same sentiment, but as always ymmv.
Well, i bought mine early december when it was around $ 33.
I think thatās a bargain for a stainless steel quad light with a pure copper head.
Itās the latest version without glue, so i can do what i want with it to improve / adapt it.
My only complaints are that the O ring in the bezel is too thin so the lens can move a little (even after putting a piece of diffuser sheet between optic and lens), the clip is pretty useless and cheap looking, the knurling is so sharp you can use it as a file, and iām not sure if it should step down a mode after only 37 seconds in turbo mode.
For the rest, i love it and i would certainly buy it again for that price.
yeah martin said the same too. and thanks for your advice. iāve just bought one a minute ago. i chose coloured w/ nichia 219B. :+1:
Could it be the battery problem? Iāll be using my Olight 16340 protected battery or 30Q 18650 hopefully no issue
The 37 seconds (supposed to be 40) are a feature of the used BLF-A6 driver, which was developed for the BLF-A6 that needed about that timing to prevent overheating. Banggood just used that driver without adapting anything for the S41 (Iām not sure if they even have the knowledge to mess with firmware) , that with its copper chunk could use a bit longer stepdown timing.
My new head finally arrived today, I can confirm that it is NOT gluedā¦ Well worth the wait
I hate to be one of those people, but the best way to āfixā the driver (assuming you consider it inadequate) on this light is to dump it for a better one. I was actually pretty surprised (aka disappointed) to see that they had just wholesale copied over the A6 driver for this light. Mine immediately came out and was replaced by one of MtnElecās Bistro drivers ā more programmable, temp regulation instead of stepdown, and a great thru-board bypass. Reflowed 4 219cs to make the upgrade complete and it became a much better light altogether. I think the host is worth doing the upgrades.
Thanks for that info. :+1:
Iāve read somewhere that a TPAD + carclo quad optic can be used if diameter on the optic is reduced. However, from what I can tell, the height of the set up differs from stock?
Has anyone successfully rebuilt this with carclo optics? Iām on the fence on this light and this could be a deciding factor.
I have built an S41 with Tpad quad and fitted Carclo. Used XP-L HI 3A and it works great with MtnE Fet+1 on Bistro.
However I have Not tried it with the new designed heads they are now using. Optic is now supported in the copper head, not the legs of the optic as a Carclo would be.