Small parts can be hard to find. I still haven’t found the M2.5 x 5mm brass screws for the little Q8 mod. Found them on Amazon but I don’t need 50 of them. I’ll keep looking.
Man I have had great luck…… my ‘parts store’ just about has it all.
Of course it is not your basic generic run of the mill, chain parts store either………… 
So if someone has only acess to this type ‘parts store’ & not the real deal…… those places Jason mentioned could be a great resource.
Check some of the Ebay links people gave, they had them in smaller quantities.
I’ll try to hunt up a link or two………
Edit: Here is a link Bushmaster, I got some from this place.
From the 5 million page Q8 thread…
Is it possible to order a Q8 MCPCB separately?
Not that I know of. There will be an aftermarket Q8 MCPCB (led4power is working on that, to be available at led4power.com) for 4040 and 5050 leds, but the stock board for 3535 leds is not separately available.
I’m still waiting on CW version. Lol
Hey, if anyone here is interested, Texas_Ace is going to build a limited run of calibrated Lumen Tubes/Spheres (with no math involved!) for those that want to measure their Q8 or any other lights actual output. More details are here.
Just got mine from Amazon .com, it came from Texas USA to London United Kingdom.
I did not want it shipped form anywhere else.4 Days to UK with priority shipping, OK I paid over the odds $117 with taxes and duty.
I have to say I am amazed every time I fire it up. I will be doing a few mods tail spring bypass, double A R Coated lens, brass screws, but to be honest it does not need it.
At times it is too bright. Well done to everyone involved in this project.
Where do we sign up?!
My switch won’t turn the light off when I click it. Usually takes one or a few clicks. Can I pay someone to do everything in lazy’s Thread and install new brass screws? I started the list in October after he posted it and I’m just now finished reading it let alone attempting it.
Have you got a link to that thread your talking about??
Post #14159
Thank you…. :+1:
You might give Texas_Ace a PM as he is in the US and might work on it for you.
Hi guys, my Q8 is dead :confounded: HELP!
I bought it in January this year at Banggood, used it a few times, mostly it was laying around
but I was super happy with that hell of a flashlight until yesterday… fail… it wont turn ON anymore.
I have turned it ON yesterday for a short time, about 30 sec and felt that the flashlight was warmer than usually on the front.
After turning OFF it wont turn ON anymore.
Even if I pull out the batteries (Samsung INR18650-30Q) and put them back in, the flashlight usually “blinked”
once when it got power from the batteries or the button was glowing, now it is totally dark.
The driver board visually looks OK, nothing seems to be burnt, the bottom spring plate is OK too as far as I can see.
What else can I check?
The LiIons are charged 4V each
Can someone point me to the process on how to get a new Q8 switch? I don’t mind paying for it! Mine has kept on flickering and just want to get a new one. Thanks! 
Can you check the colour of the springs: are they still shiny gold coloured?
Yes, they are gold as new!