Aside — has someone checked how “phosphor bronze” translates?
There’s been so much confusion because copper, brass, and bronze all seem to translate poorly to Chinese.
It would be good for them to know how Djozz’s phosphor springs made in Netherlands were specified — alloy? unique identification numbers?
Googling the term, there’s a wide range of variation:
I’m very pleased that the Q8 has a tripod mount, and I’ll credit myself for being the first to suggest it waaaaay back in post #25! 
The Noctigon Meteor doesn’t have a tripod mount, so I made one out of a quick-release ‘truss clamp’ used in concert and theater lighting.
This type of mount is rock-solid for attaching the Meteor to a bicycle, ATV, or anything that can have a screw or bolt fitted to it.
I’m hoping the clamp will fit the Q8, too.
Can someone with the latest Q8 prototype share the diameter at the center of the battery tube?
I realize the diameter may change slightly for final production, but the truss clamp works from about 1-7/8” to 2-1/8”.
Can I give measurements in mm? Inches are so strange to me.
Of course! I speak metric as well as imperial.
BTW, 1 inch = exactly 25.4 mm.
Ha how tired I am, the caliper has a button to switch so I can give both, tomorrow, the Q8 is next to the bed and I know I just don’t want to bring it from there before I slept a little 
Ah and yeah thanks for giving us a hard time making that tripod hole a part
No joking, it is an awesome part, really thanks
The diameter in the middle of the battery tube, away from the flat bits is 50.0 mm.
You’re very welcome! The Q8 will be an awesome work light when paired with a small tripod!
Thanks! :+1: Looks like a good fit for the truss clamp.
For anyone interested, the 2” quick release truss clamps can be found on eBay for about $10 each.
To make two mounts, go with a ‘dual swivel’ clamp like this:
I had one made for my bicycle to mount another BLF Special edition light. One of the Truss vendors on Ali Express made it on order.
The bolt on the truss clamp fits the tripod socket on the flashlight?
Hmm, I suppose you could configure it that way using a 1/4-20 (quarter twenty) bolt if you wanted to fasten the light to a 2” cylindrical object, but my plan was to hold the flashlight in the clamp and bolt the clamp to a bike, ATV, etc.
Sorry if I created some confusion by mentioning the tripod hole. I plan on using the tripod mount for using the Q8 as a work light, and using the truss clamp in more rugged situations.
Please add me to the list for one unit. Thank you.
Yes 50mm (or 1.968 inches
Oops m=mm
Did you mean 50 mm??
I was thinking about reflowing 4x Nichia 219C 4000K CRI 90+ D240 LEDs instead of the XP-Ls.
Does anyone have an estimate of roughly how many lumens I can expect to get with this setup?
My crude estimate places the output at around 4000 lumens.
There’s many parameters playing a role, but my guess would be a bit lower, say 3200 lumen.
How well will the flashlight tolerate 4.35V cells as opposed to just 4.2V cells? IS there any risk or harm in using 4.35V?
Yes, there is a risk of blowing the leds. This flashlight is completely direct-drive and with high drain 4.2V li-ion cells it runs the leds close to their maximum. Running them even harder with 4.35V cells might be too much. You may be saved by the 4.35V cells not being high drain enough too maintain their voltage, in that case there is no reason to use the high voltage cells anyway.
Thanks, Miller! :+1:
All the 4.35v cells I have tried so far had significantly worse performance then a high drain 4.2V cell. They have pretty high resistance in my experience.