The Nichia version should be closer to 1600 lumen.
I just noticed that they did not print this in the specs like they did with the S42. It’s the same emitters and FET so output is the same. 2100 lumen for the xpg3 version and 1600 lumen for the Nichia 219C version.
Ah ha thank you.
It looks like M4D M4X is doing a group buy for the S43S for $27, but one of the tubes is extra.
It also appears Astrolux has hotrodded both the aluminum version and this copper version by doing away with the front spring and using double springs on the tail cap. It was drawing 15A on a 4v 30Q! That’s mighty impressive.
I asked them to make this change but it was too late for the normal S43 as I understood it. Glad to hear it made it into these versions.
I’m not sure what battery tube it comes with. Banggood says the 18650 tube is optional which seems odd.
The S43S comes with an 18350 only. Their history with their prior Special editions is to offer the 18650 tube separately. I had to buy all my 18650 S41S tubes separately. That’s fine but the S43 tube isn’t listed to be sold separately. It’s listed as “coming soon”, plus you’d have to pay shipping. So this time they really should have included an 18650 tube.
That being said, I jumped on the preorder, it’s a great discount. And 15Amp holy crap I can’t wait to see that.
i try to convince them to make a 18650 tube pack
@TA
Kudos! i really like the UI :beer:
That would be great. Can you do anything to get it added into the preorders we’ve already placed?
i doubt that
Does anybody know if there are any reviews of the regular S43 available anywhere yet? Cheers.
Yes, here:
EDIT: and here, by our friend M4D M4X 
Thank you. Not sure how I’ve managed to miss it.
I’ve seen the video. It is for the S version though.
Regular S43 comes with button contact in head and dual spring tailcap
Great! They were not real clear on if it would make it into the final design.
They said something like “It is really late for such a change and I think drivers are done already but I will try”
Looking at that picture, it looks like the spring was removed and the button added after the driver was complete. Shows they went the extra step to get that change made. Glad to see that.
The final form of the production light is often a mystery to me as well as ya’ll lol.
That’s awesome.! Great work it’s really bright with the Nichia, at least for the five minutes I got to hold mine until my wife “secured” it for herself. Ah well waiting for the copper version for me 
I think I saw someone said the S43 works with the prior S41/S42 18650 tubes. Those have knurling but are a good bit shorter I believe, I need to measure. Maybe it’s the button which makes the tube seem longer. I have an extra old one I’ll have to try it. Now how to get it back from her for a few minutes …hmm
Can someone try that if the light is locked and hit the tailcap upwards with hand (Of course the spike removed 
) ? And The question is if it jumps out of lock because the little battery disconnecting or not?
Cool, I was thinking about getting the aluminum version since I’m sure the copper one will be really heavy.
Yes it does
That is not very good. You need to lock with tailcap in a bag because if you drop down your bag harder it can unlock itself. Maybe I will put in some spring in mine when it arrives with wire bypass to not make output worse.
Also, can it be locked out manually?