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

Thanks, I’ll inquire with them :slight_smile: :beer:

Button top

That’s not it, I don’t think that project is going anywhere.

See here: Led4power.com : LD-4 CC linear drivers, ILC-0/1 illuminated tailcaps, optics, MOSX, copper DTP MCPCBs... - #367 by led4power

Looking forward to rewarding led4power’s entrepreneurialism with a couple of orders, as soon as he’s ready to take them.

When you said you looked at the driver, did you remove the retaining ring and look at the other side of the driver?

You can eliminate any potential problems with the battery tube by holding your battery positive directly to the Brass Ring and then running a wire from the battery negative to the driver retaining ring. Try that.

They are available now - I Just ordered some w/ LUXEON V’s installed.
Q8 4040

It’s the same project, isn’t it? I have not been following it’s progress, but yes, these dual footprint boards are now available by Led4Power.

Yes, I almost disassembled the torch completely from the bottom side and from top/front/LED side.
I just can’t take out the LED board, it seems to be glued in with some gray (thermoconductive?) glue.

I followed Your advice and connected the negative of the battery directly to that retaining ring and it seems to work.
The button is glowing and the flashlight can be turned on.
After assembling everything together it is still dead.

Okay, so it looks like the upper half of the light is good including the driver and emitters.

The problem seems related to the battery tube.

It’s important that the top edge of the battery tube threads in and makes contact with the edge of the driver. Sorry about earlier when I mentioned the driver retaining ring. I don’t actually have a Q8, so I forgot what it looked like.

I recall people mentioning the battery tube o ring being too large and not allowing them to screw the battery tube all the way up until the top edge of it presses against the driver edge. That could be your issue. Test it by removing the O-ring and seeing if the battery tube now screws all the way in and presses against the driver.

It’s also possible that the driver is not sitting down flat on its mounting pads. I remember that the screw holes for the driver were not cut oversized so the screws threaded through the driver and sometimes caused it to sit crooked. You should check that as well.

Thanks Man, that worked! :crown:
That stupid rubber o-ring between the battery comparment and top of the flashlight was the problem.
That’s strange i’ve used all my force to fix it tight with that o-ring and it still prevented contact.
Thanks again!

I like a story with a happy ending :+1:

Yes, lots of interesting ideas were developed on the original thread, but it seemed a little stalled as far as finalising a specification/design, and someone stepping up to commit to manufacture and distribution.

The Miller asked led4power if he was interested in helping.

He has quietly got on with it. Djozz received the first a few days ago, and it’s looking good:

Unfortunately for us guys who can’t do reflows, there still doesn’t seem to be an affordable way to have a CW Q8.

Led4power does have reflow service but it requires him to have the correct emitters in stock, but atm he only has 4000K Luxeon V’s and an IR Oslon. No cool white leds.

That’s what I meant.

I’d need to buy all the parts and ship it off to get refowed and it might end up doubling the cost of the light.

I wish Thorfire would just offer some tint choices.

Yeah. Just offering the Q8 MCPCB would be a huge boon.

I asked Miranda for a spare MCPCB, and they said they don’t offer it separately.

Just a heads up

You now can purchase the lighted switch assembly here:

https://www.aliexpress.com/store/product/BLF-Q8-lighted-switch-assembly/2933049_32879434650.html?spm=2114.12010612.0.0.717a1196qStzOF

Good info……. :+1:

Good job Alex, well arranged! :+1:

Express your interest here:

Suggestion: led4-power could open up a dedicated thread for his Q8 parts, it’s all spread out on various threads at the moment, so difficult to follow. Well worth the effort though.

I’m the one responsible for that post so he is already counting me. In the end I decided it doesn’t make financial sense to try and change the color myself. I don’t really need the Q8, but if they do produce it in a cool white color I’ll probably get it then.