I like the c8s. Good flashlight.
And the fact the pill comes out and it’s easily moddable is a bonus!
I’ve left my review.
My wife has been using it to clean out the Guinea pigs in the garden at night and she loves the modes.
I love the c8 reflector hotspot and the 4 modes.
The reflector has a square hole in the centre which fits over the LED, ensuring a perfect fit. You must have fitted it incorrectly.
LED sits in a white round surround, round hole in reflector too
Mine has a square hole. Are you sure?
On mine the centering ring is circular. There should be an o-ring between the lens and bezel and a larger one between the bezel and flashlight head. If one of these is missing it could therefore be loose. It may also be worth checking that the pill is actually threaded in all the way. Here is a pic from battery side;
Hope that helps although this is kind of poor and I hope you will mention it in your review.
yes I’m sure
mine has centering ring too, but after screwing down the pill there is now a gap, just like my c12, no-one else had flickering led due to a loose pill, or am i just the unlucky one
Return it?
Looks like there are two models, maybe two factories, or changes while in production.
Your reflector has a square hole in the aluminium? Please post a picture, I’ve never seen a reflector made like that.
Mine turned up and I’m quite impressed. The machining is good, the reflector perfect and the finish is flawless. The switch is quite recessed maybe excessively so, but it will stand on the tail end. I like the way that the modes are organised, you simply cycle through the different levels and there is no SOS mode. There is a strobe mode which isn’t in the normal sequence but you can get to it from any of the modes (once you’ve read the manual)!
The only thing I can critique (so far) is over zealous lubrication of the threads meant some grease escaped and got onto the anodizing and I had to wipe it off!
In the daylight it looks bright but I need some darkness so I can test it more thoroughly 
[Edit]
I’ve tried it in the dark and it is bright, brighter in fact than my BLF D80 (my BLF D80 was running on a unprotected LiFePO4 cell and 3.0V isn’t enough volts, it’ll be brighter when the unprotected cells I have on order turn up). The beam is as you’d expect, hotspot and flood with no nasty rings.
Are you sure the bezel holding the glass and reflector in place is fully screwed down, it only has to be undone half a turn and they will rattle.
I agree that the switch is is a bit deep. Could do with a slot for your thumb.
Do these take flat top or button top 18650’s
Paul
It takes both
I think it is the same. The round plastic part that is normally on the board has come away, and is attached to the reflector instead. I think in your case it is attached to the board, but is the same as mine.
Latest upgraded C8s will be released soon. The difference is “U” tail cap, and the inside is upgraded too.
I see you removed the pictures from Amazon. Probably a good thing considering it said not yet available.
Can you explain a little about the changes inside. I think you have a winner with the new tailcap.
Will do giveaway when it’s available, people do a great review have better chance to win.
I absolutely adore this flashlight. I ended up doing quite a lengthy written review on Amazon UK. I plan on doing a video review when I receive my new laptop in a couple weeks.