Upcoming Astrolux S42 18350/18650 quad w side button and usb charging

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maukka
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Try turning the 18650 body tube around. If it’s the wrong way, it won’t make contact.

bwl123
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It charges to 4.11volts.

maukka
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Resetting turbo does work and the output brightens significantly even with a drained battery. Not to the original 1500 lumens though.

Each burst lasts for about 50 seconds till it returns to the step down level.

djozz
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Tom E wrote:

djozz wrote:
Thanks for the data maukka!
maukka wrote:
Turbo 0 sec: 1500 lm 30 sec: 1030 lm (head too hot to touch at this point)
Even for a small light like this, a 30% output drop in 30 seconds makes me suspect that people should check the heat path, perhaps the ledboard is not fixed flat onto the shelf?

Mine looked pretty well done actually, gray thermal paste, 2 screws holding it down, not super tight but secure, didn’t notice any bumps or anything, grease seemed well spread out. But a 1.5 mm thick MCPCB and a 1.0 mm thick shelf, thin alum at the head, plus 219C’s using a FET (not sure if any limits on it) — all add up to some intense heat real quick. That press&hold for OFF is a finger burner.


I assumed that they used as much aluminium as there is copper in the S41, but they made it all thinner?
Jerommel
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patmet wrote:
Just received my S42 today!
After reading for the last couple of weeks all comments of two threads here, I wasn’t sure if this was good news or not so … let’s give it a try anyway …
As I was aiming to use it solely with an 18650 cell (I don’t have any shorter ones), and the s41/s42/BLF_A6 18650 tube I ordered to BG didn’t arrive yet, I immediately dismantled my BLF A6 tube to use it with the S42 alongside an unprotected flat NCR18650B. Screwed all together, pressed the S42 on/off button and … nothing happened.
Tried several times, with a protected button top NCR18650 and the A6_BLG back (buttom), no more chance. I was still left in the dark Facepalm

So guys, before I declare it DOA to BG, any thing you suggest I may try?

I’m not confortable with the idea to dismantle the head, there seems to be some glue there.


It will probably work with a S1 / S41 18650 tube.
The threaded sections of the A6 tubes are shorter (and smaller in outer diameter).

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

Firelight2
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Had a chance to power up my S42 XPG3 last night. My observations:

The UI is horrible. One of the worst I’ve ever seen for an e-switch light. The UI is as follows:

  • Group 1: 4 modes: short click to turn on and then short clicks to cycle modes. The light remembers the last mode that was used. Long click from any mode to turn off.
  • Group 2: 7 modes: always starts in moonlight with no memory. Short click to advance modes. Long click from moonlight shortcuts to turbo. Long click from any other mode turns the light off.
  • Double-click while the light is on to switch mode groups.

The problems with this UI:

  • Long-click for off is inconvient.
  • Can’t access moonlight or turbo in mode group 1.
  • Can’t turn the light off from moonlight without first switching to a brighter mode.
  • No shortcut to turbo from off.
  • Very easy to accidentally switch to the other mode group.

The E14II’s UI isn’t perfect, but it’s still much superior to the S42’s.

Other observations:

  • Battery tube is too short for 18350. I knew this was going to be a problem though so didn’t try to force it. Instead I swapped in my S41’s 18650 tube which worked fine out-of-the box with no modification and no forcing of the battery.
  • The screw threads for the hammer at the bottom of the light add unnecessary length. With the 18650 tube installed the S42 is the same length as the Manker E14II, when Astrolux could have easily made theirs a much shorter light.
  • The light feels very lightweight and much more pocket EDC friendly because of it compared to the E14II.
  • The battery cover is too loose. The socket for it in the head and/or the cover should be redesigned to give a much firmer fit.
  • Very nice cool white tint. Slightly better than the cool-white tint on my XPG3 E14II
  • Max turbo output on the S42 is noticeably dimmer than the turbo output on the E14II. The S42’s head also takes much longer to heat up than the E14II. That’s a good thing considering the E14II heats up to uncomfortable temperatures in 10 seconds or so. As the previous poster noted, turbo output in the S42 dims gradually over 30 seconds or so. I suspect the driver is programmed to do this intentionally to prevent the light from overheating.
  • The button feels nice, but protrudes well above the head. The more flush E14II’s button might be less likely to accidentally turn on in the pocket.
  • USB charging seems to work fine.

What I like about the S42:

  • Anodizing and workmanship appear excellent
  • Light weight makes the light practical for EDC carry even with 18650 tube installed.
  • Quad emitters with good tint.
  • Low price… less than half the cost of the E14II.
Tom E
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+1 on turning the A6 tube around - that's what I did, but might have still added the washer in the tailcap, not sure - probably noted from yesterday in my posts.

djozz - hhmm, still at work, but think you are right - alum is thinner perhaps than the copper of the S41. Never was able to get the bezel off my S41 though.

Royo
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Jerommel wrote:
O, i forget, the 2nd main problem is the UI of course.. Or is it the rubber USB cover? Sad

The interface is awful, my daughter does not know to turn it on, and the batteries, not the ass loads, the usb top, is the easiest to fix

whitecitadel
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Put mine back in the box waiting solution from @banggood

Sad

EDIT: Oh but they did finally refund my points from the cancelled tube order Smile

Royo
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Firelight2 wrote:
Had a chance to power up my S42 XPG3 last night. My observations:

The UI is horrible. One of the worst I’ve ever seen for an e-switch light. The UI is as follows:

  • Group 1: 4 modes: short click to turn on and then short clicks to cycle modes. The light remembers the last mode that was used. Long click from any mode to turn off.
  • Group 2: 7 modes: always starts in moonlight with no memory. Short click to advance modes. Long click from moonlight shortcuts to turbo. Long click from any other mode turns the light off.
  • Double-click while the light is on to switch mode groups.

The problems with this UI:

  • Long-click for off is inconvient.
  • Can’t access moonlight or turbo in mode group 1.
  • Can’t turn the light off from moonlight without first switching to a brighter mode.
  • No shortcut to turbo from off.
  • Very easy to accidentally switch to the other mode group.

The E14II’s UI isn’t perfect, but it’s still much superior to the S42’s.

Other observations:

  • Battery tube is too short for 18350. I knew this was going to be a problem though so didn’t try to force it. Instead I swapped in my S41’s 18650 tube which worked fine out-of-the box with no modification and no forcing of the battery.
  • The screw threads for the hammer at the bottom of the light add unnecessary length. With the 18650 tube installed the S42 is the same length as the Manker E14II, when Astrolux could have easily made theirs a much shorter light.
  • The light feels very lightweight and much more pocket EDC friendly because of it compared to the E14II.
  • The battery cover is too loose. The socket for it in the head and/or the cover should be redesigned to give a much firmer fit.
  • Very nice cool white tint. Slightly better than the cool-white tint on my XPG3 E14II
  • Max turbo output on the S42 is noticeably dimmer than the turbo output on the E14II. The S42’s head also takes much longer to heat up than the E14II. That’s a good thing considering the E14II heats up to uncomfortable temperatures in 10 seconds or so. As the previous poster noted, turbo output in the S42 dims gradually over 30 seconds or so. I suspect the driver is programmed to do this intentionally to prevent the light from overheating.
  • The button feels nice, but protrudes well above the head. The more flush E14II’s button might be less likely to accidentally turn on in the pocket.
  • USB charging seems to work fine.

What I like about the S42:

  • Anodizing and workmanship appear excellent
  • Light weight makes the light practical for EDC carry even with 18650 tube installed.
  • Quad emitters with good tint.
  • Low price… less than half the cost of the E14II.

I have the same, and I think the same, perfect review, you have tried to load it? With a samsung 30Q, do not load it until the end, it tastes bad, because I like it a lot, and since it lowers a lot of intensity, Runtime

Firelight2
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Yes, I’m running mine on a flat-top Samsung 30Q. Light runs perfectly.

Royo
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Yes, but from the usb of the flashlight, it is not able to load it at 100%.

patmet
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Reversed the A6 tube - still no contact. Checking internal and external screw dimensions I can see now why you did that and added some washer; that is right, A6 tube is a little bit too short at least at one side to make contact, so will retry once I have found a rightly sized washer. Thanks for explanations that clarified the issue. Apart from that, the rubber hiding the usb charging plug keeps going away, it's clearly too loose to stay in place - BG is supposed to provide replacement, correct?

Tom E
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Ohh - after you reversed the tube, please check if the driver side contact works by grounding the Batt- end to the housing, tailcap off of course smile. It should work, then least you know the driver end has good contact.

Firelight2
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Royo wrote:
Yes, but from the usb of the flashlight, it is not able to load it at 100%.
Ah. I haven’t tested the charger to see what it stops at. It’s not a good sign if it’s not fully charging.
jack-bkk
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i got it yesterday and try it with this meco 16340 batteries it worked for a test but this light in my opinion is a total failure.

the UI cant be turned on and off with 2 clicks no its one click for on another click to go to the next level and a long click to turn it off this makes in unusable for any random person who picks up this light.

the next disappointing point is the strobe its so weak and soft you can look into it straight away without feeling disturbed (i don’t know who made this but strobe is around long time and easy to reproduce from existing proven lights)
next ridiculous Mode is the bike flasher its 3 seconds on then dark for a 1/10 of a sec then one for 1/10 this repeats 3 times i never saw a worse biker flasher ever. here again just take a sample from the blf a6 light this modes are all perfect why fail after doing it right ??

the user manual medium grey on white in the smallest fonts available on earth someone explain that???

this is just the UI all the hardware stuff are discussed here well already

and after playing with it for a less then an hour its stopped working at all now its total Dark

mudguts
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paypal dispute time,

joechina
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So would it be possible to make a fixed BLF version, as I wrote here http://budgetlightforum.com/node/54879 ?

Banggood had to change Usb cover, Tube and we need a good UI

Joe

Sprinkles
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Jerommel wrote:
M4D M4X wrote:

keeping the two spring design allows button top and flat top imho

A spring is too big, this is the main problem. A flat button or solder blob on the driver (in stead of the spring) is enough.
I don’t think this is necessarily true. Although I did remove the spring and install a solder blob, it was only barely enough to make the cell fit. It would be much better to have another 3-4mm of tube length to accommodate the various length of cells.
Roadie
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joechina wrote:
So would it be possible to make a fixed BLF version, as I wrote here http://budgetlightforum.com/node/54879 ?

Banggood had to change Usb cover, Tube and we need a good UI

Joe

I would rather them fix the one I already have. I don’t want to pay then again to get what I should have gotten.

jack-bkk
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i wonder why they didn’t copy the usb port solution from manker this rubber thing makes this flashlight not waterproof at all because this comes lose so easy…

its funny someone copy a product and instead of improve it and make it better they made everything possible worse

whitecitadel
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Ok, definitely crushed the cell a bit, opened a ticket with banggood, lets see what they say.

I was stupid to assume this is a S41 with charging…

Jerommel
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Sprinkles wrote:
Jerommel wrote:
M4D M4X wrote:

keeping the two spring design allows button top and flat top imho

A spring is too big, this is the main problem. A flat button or solder blob on the driver (in stead of the spring) is enough.
I don’t think this is necessarily true. Although I did remove the spring and install a solder blob, it was only barely enough to make the cell fit.
The driver spring is the main problem. But it’s not the only problem. The tail spring is too tall and rather stiff. it should be replaced by a shorter one or made shorter by cutting off a coil or two.
Quote:
It would be much better to have another 3-4mm of tube length to accommodate the various length of cells.
Why would that be better? You’re not gonna use protected cells in this light anyway, because it’s a high current light.

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

zak.wilson
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That UI sounds ridiculously bad. What the hell were they thinking?

Something makes me think that if somebody from Banggood/Mateminco/Manker/etc… came to one of the resident firmware experts like ToyKeeper or Tom E and said “We’re making an e-switch 219C FET quad, will you write a firmware for it?”, the answer would have been yes and the result would have been awesome.

On the other hand, credit for being the first light on the market with a 5000K, 90 CRI 219C.

Ceilingbounce – flashlight testing and runtime graphs for Android

Tom E
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Tom E wrote:

+1 on turning the A6 tube around - that's what I did, but might have still added the washer in the tailcap, not sure - probably noted from yesterday in my posts.

djozz - hhmm, still at work, but think you are right - alum is thinner perhaps than the copper of the S41. Never was able to get the bezel off my S41 though.

I'm quoting myself here to clarify this. There is more metal to the housing of the S41 than the S42. Comparing them, it seems like the much smaller driver accounts for a lot of it. The 17 mm driver the S41 has means the housing in that area of the driver mount is much thicker and the inner pill area much narrower, where the 20-21 mm wide driver in the S42 pushed the width out, combined with the sandwich 2 board design to accommodate the USB connector, there is no room at all to make the shelf any thicker than it is already (~1 mm).

 

maukka
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Tested the integrated charger. Took 6 hours 13 minutes to charge a 3000 mAh VTC6 at 0.4-0.6 A (measured from the usb socket, not the battery). End voltage 4.16 V. Discharging at 8 watts produced a total energy of 10.56 Wh, which is about 97.7 % of a completely filled cell charged in an MC3000. Not bad, albeit too slow for me.

Charge curve

Discharge curve.
Blue: after charging in the S42
Pale blue: after charging in the SkyRC MC3000

patmet
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Tom E wrote:

Ohh – after you reversed the tube, please check if the driver side contact works by grounding the Batt- end to the housing, tailcap off of course smile. It should work, then least you know the driver end has good contact.


Tom, checked this with a simple cable between housing edge and battery bottom, it worked alright: for the first time, I saw the light Crown !
So inner dimension of head and tail (too long) vs screw parts dimension of classic A6 tube (too short) is clearly the issue …
Thanks for the advice!
chinooker
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how about removing the anodizing from the threads and removing the tail spring?

bwl123
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maukka wrote:
Tested the integrated charger. Took 6 hours 13 minutes to charge a 3000 mAh VTC6 at 0.4-0.6 A (measured from the usb socket, not the battery). End voltage 4.16 V. Discharging at 8 watts produced a total energy of 10.56 Wh, which is about 97.7 % of a completely filled cell charged in an MC3000. Not bad, albeit too slow for me.

Charge curve

Discharge curve.
Blue: after charging in the S42
Pale blue: after charging in the SkyRC MC3000
!http://i.imgur.com/1gr98Mx.png!

……………………………………
My Keeppower 18350 end voltage was 4.11v.
My Samsung 30q 18650 end voltage was 4.12v
Is anyone having the same result when using the USB charger?
Thanks

Banggood
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Hello Dear friends,

Sorry for the delay, now we give a solution for S42 problems:

After Verified by the manufacturer,the length of the tube is too short and it can’t compatible with most length of 18350 and 16340 protection cells and button top cell, the manufacturer adjusted the tube length and they verified the 40 mm tube will solve the problem and allow most cells to be used without the danger to damage it, including the 18350 and 16340 cells. At the same time, they also modified the design of the USB silicone cover.

Any problems, please contact our CS, we will send you a free 40mm tube and USB silicone cover, you can replace it yourself. Please send E-mail to cservice@banggood.com, don’t forget to include your order number, thank you.

By the way.S42 and s42s will use 40 mm tube and the latest USB silicone cover. The s42 now has been sent back to the factory repair, thank you for your understanding and support, we will try our best to do well in the after-sales service.

Best Regards,
Banggood Flashlights Team

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