Q8, PMS SEND TO THOSE WITH ISSUES BLF soda can light

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djozz
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Got the first of my 3 Q8’s in (2 were shipped, 1 is in backorder). It is in fine condition. Some numbers and impression later.

A picture to nag the OCD-sufferers (no, not the leds, they are equally bright)

Yokiamy
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Today i received my Q8 (free shipping option) and this is how the package came out of the typical grey plastic Banggood bag

So i could not wait to try it, so put some new and fullly charged 30Q’s in it and i noticed the unbalanced switch indicator LED’s.

Then played a little while with it, and man, i love it! I love the ramping, love the size, love the tint, it’s a winner!

Luckily the indicator LEDs do not show any signs of intermittent flickering or such.

One thing that annoyed me is that i did not notice a small burr on the end that touches the head on the PCB, which resulted in a scratch on the PCB (poor picture)
.

Even my wife, (who thinks i already own too much lights) said it is a nice light, well thats a compliment for her Big Smile

hank
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Quote:
i did not notice a small burr on the end that touches the head on the PCB, which resulted in a scratch on the PCB

Ding. They didn’t check for that.

bella-headlight
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sac02 wrote:
bella-headlight wrote:

The Q8“S next to my 2 UF“s Wink

Oh, I’ve got that UF – I assumed the Q8 would be the same size. That’s a nice surprise (for me) that it will be that much smaller!

How did you do the colored bezels on the UF’s?

The UF“s are available with a choice of bezel colours, silver & black also iirc so I just ordered one with the colour I wanted.

Ian

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Nice! Great news finally a real production Q8 in the hands of another team member! Awesome for we all know Djozz has no problem saying how it is. Sorry, very good to go into the weekend with others being positive and nice too of course, but joy not all the weight of answering about production Q8 lights is on Toms shoulders! Cheers all poured myself a drink 50% red fruit syrop and 50% decent Cognac to celebrate, cheers Good weekend all!
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Nil
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Tom E wrote:

Yes, all that is pretty much known now, accept for 5, about the brass ring being dirty – don’t think I’ve noticed that in my samples. For 6, we know they aren’t perfectly centered  but don’t think I’ve seen blatant twisting in production Q8’s.

I purchased three Q8’s and 2/3 had this black stuff on the ring. There wasn’t much but it was noticeable, almost made it look like there was impurities in the copper – Isopropyl alcohol barely did anything to remove it.

I ended up using Acetone and cotton swabs and I had to scrub quite vigorously to get it off, it was amazing seeing how dirty the acetone swab was when I had cleaned it with isopropyl seconds before and the isopropyl swab came off clean.

I managed to get almost 100% of it off, but I feel like after putting my lights back together and using them that a small amount came back, I’m starting to believe it’s part of the button tops rubbing on the copper and leaving metal there.

Maybe they were dirty from Thorfire testing the lights with 18650s before shipping? Maybe Thorfire is using 18650s with crappy quality button tops or solder blobs?

Now copper should be softer than whatever the button tops are made of, but maybe the button tops are nickel plated or something? Plus solder is definitely soft enough to be affected by copper.

EDIT: The ring is brass not copper, duh me. I honestly thought it might have been brass considering the color, but I figured it was copper due to its better conductivity. Brass is only 28% as conductive as copper, but copper oxidizes… man if only we could have silver plated copper lol.

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The Miller wrote:

poured myself a drink 50% red fruit syrop and 50% decent Cognac to celebrate, cheers
Good weekend all!

You deserve a full glass of Cognac, with a dash of syrup for color!

Bug

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With both of my today arrived lights I only got around 4000 Lumens with Samsung 30Q Solder-Top and Protected Imalent from the DT70. Is there something wrong with them?
Or is my lightbox badly adjusted? But I got similar readings on the BLF A6 compared to what was written here and similar readings here and on TLF with the Astrolux MF-01 Nichia.

Tom E
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Nil wrote:
Tom E wrote:

Yes, all that is pretty much known now, accept for 5, about the brass ring being dirty - don't think I've noticed that in my samples. For 6, we know they aren't perfectly centered  but don't think I've seen blatant twisting in production Q8's.

I purchased three Q8’s and 2/3 had this black stuff on the ring. There wasn’t much but it was noticeable, almost made it look like there was impurities in the copper – Isopropyl alcohol barely did anything to remove it. I ended up using Acetone and cotton swabs and I had to scrub quite vigorously to get it off, it was amazing seeing how dirty the acetone swab was when I had cleaned it with isopropyl seconds before and the isopropyl swab came off clean. I managed to get almost 100% of it off, but I feel like after putting my lights back together and using them that a small amount came back, I’m starting to believe it’s part of the button tops rubbing on the copper and leaving metal there. Maybe they were dirty from Thorfire testing the lights with 18650s before shipping? Maybe Thorfire is using 18650s with crappy quality button tops or solder blobs? Now copper should be softer than whatever the button tops are made of, but maybe the button tops are nickel plated or something? Plus solder is definitely soft enough to be affected by copper.

The ring is brass not copper, but doesn't explain anything, don't think. Hhmm, I'll have to check the ones I got - maybe didn't notice/look for it. I'd probably use some 600 GRIT paper on them if the isop. alcohol didn't work. Maybe just not cleaned up from the manu process.

hank
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Quote:
a small amount came back, I’m starting to believe it’s part of the button tops rubbing on the copper

Isn’t that contact ring brass, not copper?

The dark smear could come from the contact ring, or it could be carried on whatever cutting tool they used (maybe it’s scorched lubricant?)

There are a lot of different brass alloys. If it’s a “free cutting brass” alloy, containing lead, the lead will smear out across the surface under contact — it’s a feature lubricating the cutters.
If that’s the source of the dark mark, a combination of vinegar and hydrogen peroxide will clean the surface:
http://brewingrabble.com/resources/surface-lead.htm

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Interesting data point: on my previously bad/flickering switch board i replaced the resistor and both LEDs (same reel, should be same properties) and one of them was still dimmer than the other. I’m thinking now that it is due to the traces in the board itself rather than the LEDs being mismatched.

Are there any oshpark board designs or there I can try as a replacement for this illuminated switch?

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amplificus wrote:
Interesting data point: on my previously bad/flickering switch board i replaced the resistor and both LEDs (same reel, should be same properties) and one of them was still dimmer than the other. I’m thinking now that it is due to the traces in the board itself rather than the LEDs being mismatched.

Are there any oshpark board designs or there I can try as a replacement for this illuminated switch?


TheMiller posted somewhere in here, or the Q8 mod thread (moving so fast it’s hard to find), that Thorfire is redesigning the switch board. I would imagine, they would offer you one when it’s complete.

Bug

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I would take you up on that bet The Miller, sadly my flashlight spending money is tied up at the moment. Have a good weekend, I am sure this whole situation has a lot for you to deal with. I’ll do my best not bother you with further apparently unanswerable questions . It is what it is and you deserve a break

Lexel
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amplificus wrote:
Interesting data point: on my previously bad/flickering switch board i replaced the resistor and both LEDs (same reel, should be same properties) and one of them was still dimmer than the other. I’m thinking now that it is due to the traces in the board itself rather than the LEDs being mismatched.

Are there any oshpark board designs or there I can try as a replacement for this illuminated switch?

traces cant be the issue, just 1 resistor for both means even the slightest difference in Vf makes on dimmer
Cree LEDs of the same reel usually have quite the same Vf,
but for those tiny SMD LEDs the emitting area is a lot smaller, so they may vary a lot more

Unsoldered LEDs and switch just holding my temp stabilized iron at 300°C at the other side
also skillet might work well

then cut the trace to one LED and add a resistor

add solder paste

add resistor and wire

2 white LEDs with 19.1kOhms each

patmurris
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Wieselflinkpro wrote:
With both of my today arrived lights I only got around 4000 Lumens with Samsung 30Q Solder-Top and Protected Imalent from the DT70. Is there something wrong with them?
Or is my lightbox badly adjusted? But I got similar readings on the BLF A6 compared to what was written here and similar readings here and on TLF with the Astrolux MF-01 Nichia.

With solder blobed 30Qs you should definitely get 6k+ out of the box.
Either your reading is off or your batteries are not fully charged or both your lights are under performing – but that seems a lot.

Try tightening both ends of the flashlights and see if it gets better. Some clean up could help too, according to reports. Seems odd that the two lights are both so low…

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Scorpia wrote:
Well,

ive just been told that banggood wont ship my 30q’s to australia, Sad

Looks like im looking for another source. at least i still have time. my Q8 hasnt shipped yet.

Scorpia


Whilst not as cheap, these are Aussie options, with fast delivery and good customer service too.
http://www.ebay.com.au/itm/2x-Sony-VTC6-high-current-3000-mAh-Nipple-top...PCB-lithium-ion-batteries-/271353127067
http://www.ebay.com.au/itm/4-IMALENT-3000mAh-IMR-Protected-18650-HIGH-DRAIN-15A-MRB-186P30-Li-ion-batteries-/272764467727
Tom E
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Wieselflinkpro wrote:
With both of my today arrived lights I only got around 4000 Lumens with Samsung 30Q Solder-Top and Protected Imalent from the DT70. Is there something wrong with them? Or is my lightbox badly adjusted? But I got similar readings on the BLF A6 compared to what was written here and similar readings here and on TLF with the Astrolux MF-01 Nichia.

4,000 at 30 secs sounds pretty low if using 4 30Q ST's. Here's # taken at 30 secs on fully charged 30Q BT's from Banggood (large top):

5,440     4,930      5,290     5,035     4,780     4,770

Maybe my PVC light box is a little high - think djozz sees about 200 lumens lower from past comparisons at these levels. I was expecting in the range of 5,500 lumens, as I saw with the prototypes. But the good news is with tweaking, the 4,780 light did 5,170 with cleanups and screws replaced, and did 6,150 with the fully modded tail PCB from the prototype.

More to come...

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stephenk wrote:
Scorpia wrote:
Well,

ive just been told that banggood wont ship my 30q’s to australia, Sad

Looks like im looking for another source. at least i still have time. my Q8 hasnt shipped yet.

Scorpia


Whilst not as cheap, these are Aussie options, with fast delivery and good customer service too.
http://www.ebay.com.au/itm/2x-Sony-VTC6-high-current-3000-mAh-Nipple-top...PCB-lithium-ion-batteries-/271353127067
http://www.ebay.com.au/itm/4-IMALENT-3000mAh-IMR-Protected-18650-HIGH-DRAIN-15A-MRB-186P30-Li-ion-batteries-/272764467727

StephenK

Wow, thats double the price at least, ill keep them in mind but ill keep looking for now.

mapache wrote:
Were they the 30Q’s in the plastic box?
ssschen wrote:

Scorpia wrote:
Well, ive just been told that banggood wont ship my 30q’s to australia, Sad Looks like im looking for another source. at least i still have time. my Q8 hasnt shipped yet. Scorpia
Scorpia, When did you order the batteries? I ordered 4 of the 30Q for US$18.69 shipped a few days ago, and it was literally shipped a day after.

Shipping Info

i ordered these on the 20th.

https://www.banggood.com/4PCS-Samsung-INR18650-30Q-3000mAh-Unprotected-B...

ssschen, can you link the ones you ordered and let me know what shipping option you took please.

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Of topic @ Tom. You mentioned somewhere you had a soft spot for a triple with no pill you modified. Was it the HD2010 triple?

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

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My second Q8 arrived today.
It does have the mismatched SW LED’s when sitting in standby state, unlike the first one.
It has an intermittent problem.

It will sometimes not shut off.

The first time I turned it on, I ran it up the ramping about half ways. Released the SW and immediately ramped it down to ML. Ran it back up and down a couple or so times. Then hit the SW to turn it off. It stayed on. I hot the SW again. Nothing. I untwisted the body from the head a quarter turn and it went off. Of Course it would.

Turned on. Turned off. that time all was okay. Since then I have done many of the tricks it is capable of; battery level check, OK. Four click lock out and back in, OK. Double click to jump to turbo, OK. I let it run on turbo to check the timeout; 3 minutes, so OK.

A couple of times during these trials it would not turn off. Clicking the SW caused the SW LED to flash, but the light remained on. Sometimes after several clicks it would go off. Sometimes I would give up after a half dozen clicks and turn it off by loosening the body to head.

Sometimes, when it will not turn off the LED’s will flash and be very slightly brighter, then with the next click go back down. This is with the light on ML.

I attempted to make a video. Naturally the light worked fine during that time. I’ll try again later. I have both lights with 30Q’s, one in left hand, one in the right hand, clicking in unison. The good light, #1, works flawlessly but #2 hiccups every so often.

Sure would like #2 to work reliably.

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Hmm MtnDon that is a new thing.
Yet is seems tied to the switch assembly again.
Will update OP tomorrow.

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MRsDNF wrote:
Of topic @ Tom. You mentioned somewhere you had a soft spot for a triple with no pill you modified. Was it the HD2010 triple?

Yep - dunno why, still like the rough, not so pretty, but great performance of a HD2010. So found some great deal on a triple version, so couldn't turn it down.

Found it: Beamtech BT-4000 form TMART for $22 - back  in April 2015.

 

Hhmm, MtnDon's issue sure sounds like a mechanical switch problem. The description sounds like one click acts as 2 clicks, but hard to say.

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To save me reading through hundreds of posts has anyone got a link to a pouch/holster for the Q8 that is either available in the UK or will ship to the UK without incurring high shipping charges please Wink
I think there was a smoke grenade pouch available for people in the US only ?

Ian

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MtnDon wrote:
It has an *intermittent problem*. It will sometimes not shut off.

 

One of mine has just now done that too.  I'd double-clicked to turbo to see what the noise was in the back garden & then grabbed the 2nd one & did the same, after a few seconds of having fun beam waving I shut them both off, only the 1st one wouldn't turn off.

I could ramp up & down no problem just couldn't switch off, I unscrewed the head then re-tightened and it has been fine since, I can't repeat the issue. :shrug:

 

One more possible issue: earlier today after maybe 11 hours without use I noticed both switches were no longer illuminated while in standby, turning on then off brought them both back to life and again, it hasn't happened since.

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PBWilson
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bella-headlight wrote:
To save me reading through hundreds of posts has anyone got a link to a pouch/holster for the Q8 that is either available in the UK or will ship to the UK without incurring high shipping charges please Wink I think there was a smoke grenade pouch available for people in the US only ?

I heard that THIS POUCH works with the Q8 from a poster in the Astrolux MF-01 thread.

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Ha! Beat me to it MtnDon!

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patmurris wrote:
With solder blobed 30Qs you should definitely get 6k+ out of the box.
Don’t agree. I got two Q8 and measured 5250 and 4820 lumens which is close to other measurements. After tail PCB mod 1000 lumens more though.
bella-headlight
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Thanks just ordered Thumbs Up

Ian

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