ENEDED

can anyone confirm that XP-G3 is quite hotter than Nichia version at the same amount of time period.

my xp-g3 version gets quite hot in even level 4 than the nichia model within about a minute.

I have seen that some say thermal paste is not enough and led plate does not touch the copper part properly and it cause the extra heat. is that true??

ASTROS41S - invalid promo code… any updates on the code? thank you :slight_smile:

If there are problems with the heat path such as no thermal paste or port contact of the mcpcb to the host, the host will actually feel much cooler while your leds burn up. The faster a light heats up the better the thermal path. So in your case, the nichia host would be the one with problems, if there is a problem at all.

I see: ok the optics, but why changing the leds?

Not necessarily.
The MCPCB will get much hotter and the efficiency of the LEDs will be bad, so in all there will be more energy transferred into heat, and the only way the heat can go is the pill, so eventually the light will get hotter when there is bad heat transfer to the body.

That’s true though.

I’m confused. I’ve just ordered the S41S, will I be able to use its head with my 18650 S1 tube (wich has 0,95 mm pitch)? I thought so because according to this http://www.banggood.com/it/Astrolux-S41-Astrolux-S1-LED-Flashlight-18650-Body-Tube-p-1054468.html at least S41 and S1 should have common threading… but now it seems that the S41S matches the S2+ body, which I also have and I confirm that has wider threads (1,2 mm pitch). So how is this thing?? does that mean that S41S and S41 have different threading? :s

I’m sorry but that’s just not the way it works. If your s41 has an mcpcb that is separated from the led shelf your emitters will fry before your light barely gets worm. Ask me how I know;)

Convoy S2+ does not fit Astrolux S41S

the user I quote in my last post wrote it did fit :confused: so you think it will not fit the convoy S2+ but it will instead fit the astrolux S1? (which is what I’m hoping for, of course. For the option of using the 18650 tube but also to use the aluminum 18350 tube+tailcap to shave some weight)

As you can see in the description

S1 and S41 shares the same tube.

S41 and S41S have the same dimensions, just different materials.

I just received my second S41S today. I waited until after the problems were sorted out before I ordered my first and it arrived awhile ago. All was good so I ordered a second. It’s good too.

I have noticed that some were complaining that theirs kicks down to moonlight after running on Turbo for the 35 seconds or so.

Both of mine do too, when running on an 18350 IMR from Radio Shack. However both of them kick down to level 6 from Turbo (level 7) when running on a 20Q 18650. I also ordered the longer tubes.

Yeah I linked the 18650 tube a few posts above, to show the same… hopefully my S41S will lego with my S1 (which is also the most logic thing to expect). It’s just so weird that every now and then someone shows up saying that their copy fits the S2+… and there’s even a picture showing that, more info here: Astrolux S41 - presale ended - #1313 by fedcas

If the LEDs are already punished by the optics and have “the blue light problem”

Yes and no.
The separate sold tube fits both flashlights. But the threads of S1 tube are shorter as on the S41 and makes no contact to driver retaining ring.
It can be fixed with solder blobs on the driver.

Wrong.
My S41S Colored head (from a light bought complete) fits perfectly (without any modification) on a body from a complete A6 (S1).
So is there more than one version of the A6/S1 or S41S?

Once again:
All Convoy S-series have 1.25mm pitch thread
All A6/S1/S41/S41S have 1.0mm putch thread
But half of A6/S1/S41 tubes are smaller OD. They dont fit S2+, if you will use small force to put them out without screwing they will fall down.

Could you please be a bit more specific?

Thanks, I had missed that post.

Sounds like a bit of a mess…

Sorry for the late reply. But thats not the question if the bare BLF A6 works with the E14 Head.
The problem of some black BLF A6 is that the threads are too short to reach the driver-retainer ring with its bare end to make contact with it.
The bare A6 makes contact on the threads, there is no need to have a contact between the end of the tube and the driver-retaining ring.

+1 for the mess :s :s :s

kiriba, thanks for your measures, now I am more confident that I will be able to lego the S41S head with the S1 parts how I wish :slight_smile: by the way, I have just measured all the S1 tubes that i have:

1) the 18650 and 18350 ones that came with the box are very consistent measuring exactly the same, both at the tail and at the head side: OD 21,72 mm and 1 mm pitch.

2) Also the other S41/S1 spare 18650 tube from banggood (clearly from a different manufacturer or at least batch, since the anodizing is much more matte than the S1 one and there are other minor differences in the geometry) has almost the same OD, less consistent between the tail and head side but it’s around 21,75-21,80 mm (the bigger difference is in the tube ID though… with this tube protected 18650 cells tend to get stuck inside)

Thanks! :wink: you must be right this should be the only possible explanation… even though my S1 tube has 5 threads, and with 0.25 mm gap per thread that means after just 3 threads the crest of the internal threads will correspond with the crest of the external threads… no way this can be done smoothly I guess :s I’d rather say it should take quite some forcing to screw such parts together… too much animals around maybe :p?