Just got mine today but everything is good but the the head is all scratched up and marred up and the tail has been marred up too.
The ar lens is in perfect condition though.
Any thoughts on replacing the o-ring with a thicker one? I checked some of the popular sites on blf but didn't see anything in 57mm. Dunno where else to look.
Can you post a picture up of the damage and I would contact Ric.
I would've taken some pictures, but I already used a sharpie on the spots of exposed aluminum. 
Got the first one today, I can see why Tom E is always praising this light, real good throw, nicely built, and compact size compared to other good throwers. The side switch with high, medium, low, and hidden strobe is perfect for the non flashaholic type and I also like it. Was packaged well, 2 bags of popped bubble wrap, wrapped in about 2+ feet of closed cell foam wrap(about 3 or 4 layers around light) and then in a bubble wrap envelope. Perfect except for 4 small anodizing nicks on the tail cap. Don’t know if they all do this but the Yezl logo lines up perfectly with the side switch. Very happy with this light. Thanks Steve and Ric.
Almost forgot, this thing throws really good.
The light is going to be a work light when I’m done anyway. Thanks though MRsDNF for the group buy. Came through and pretty cheap.
You guys are spoiled if this is the norm 
Now if I don’t ruin it. Lay off the beer
Well, after some testing I have to say I’m not all that impressed. It’s ok, but not a standout in any of the factors.
With EVVA 26650’s from Richard, freshly charged, it makes 3.02A on 1 cell, 1.66A on 2 cells at the tail.
One cell shows me 765.9 lumens at start, 724.5 at 30 seconds.
Two cells show me 845.25 lumens at start, 724.5 at 30 seconds.
So it runs pretty much the same whether using one or two cells.
Lux with one cell showed 55.25Kcd at a calculated 470.11M
Lux with two cells showed 56.5Kcd at a calculated 475.4M
It’s been argued that my test equipment always shows high. If this is so, then this light truly sucks.
In terms of regulation that’s a win. Doesn’t dropout immediately on 1s and maintains about the same drive current on 1s and 2s. Definitely on the “super tame” side for such a large light though…
To each his own I guess. Bare in mind it will fit a 26700 cell like the KK 5000 (actual 5300+ mAh) Richard sells. To me it's an upgrade from a HD2010, but not in cost:
- SS bezel, side switch, style, better internal design - pill-less with a very thick emitter shelf, ability to add extenders.
I haven’t tried one of those new ones yet though, the ones I have are not that potent. The 26700 Moli. Yes, for some of the HD2010’s it is an upgrade, but the Tangsfire TS2010 is as good or better in fit and finish, at least the one I have is.
I personally am not that fond of the bigger lights. I did get the extra tube for this Y3 in order to use 2 cells for an MT-G2 mod, but I like a smaller light typically. Might be just me right now, perturbed at the way my Dr.s visit went today and still feeling bad. Oh well, another day looms nigh…
From what I've seen in reviews so far, I surmised that this light is fairly conservatively driven as stock.
I wouldn't have thought that seeking out uber-performance cells would make much difference until AFTER you modded it. Or am I missing something?
Well after some testing tonight, my Y3 has a really loud hum on all modes, I am really disappointed.
You are correct.
From the driver, tailspring/switch, or something else?
Earthing issue somewhere?
Coming from the switch or driver, but it is loud enough it could be both.
Received mine yesterday. Couple small dings and scratches. Not serious enough to ask for a replacement. One of the extension tubes won't complete the electrical path though. Haven't looked into what I can do to fix that yet. It appears that the flat non-anodized end is not making contact with the tail cap. Otherwise, I like the light.
I would say this is more of a general purpose light. It appears to have a very similar or the same reflector as the single emitter "J18" light. It's beam pattern that is very useful for my purposes. Side by side, I see no difference in the beam pattern, but not certain as the Y3 seems slightly out of focus. Also, the Y3 is harder drive stock than the "J18".
I would guess that it will be floody with an MT-G2. RaceR86 modded his "J18" with a MT-G2 and has a beam shot. If one wants more throw, a dedomed xml or xpg should do well.
Nice light. Good flattish anodizing and grabby knurling, side switch, SS bezel, 26650 capable, and solid innerds, I likey. Thank you MRsDNF and Ric for arranging this.
EDIT: Quick and dirty measurements this morning. 47kcd calculated based on measuring at 10ft. I've switched to a new measuring location and haven't hung a 10ft marker. I could have been 0 to 6 inches further than 10 feet, but no less than 10 feet. Used 2S KK ICR's close to fully charged. Measured 1.34amps at the tail. Tried out some laptop pull 18650's that were close to mostly charged and amps fluctuated from 1.34 to 1.6. The driver does seem to regulate nicely (assuming emitter is getting steady current).
I'd work on the driver ground contacts - first clean with isopropyl alcohol, then treat with NO-OX-ID (from IS) - finding this stuff is pretty amaz'n. I'm using it on all my lights now - it is conductive so you can't be sloppy with it. I like it for driver ground ring contact with the pill, and through-out the tail assembly, on the threads and PCB contact points, even between the springs and the brass cap, if present. The 5 Y3's I've got or worked on haven't had this issue though.
I'm a bit disapponted with the quality issues so far in this GB - it's hit and miss, but still seems like a substantial percentage have some issues, mostly nicks and such, but still... Totally agree they should have been shipped in boxes. The 3 I bought from WB came in boxes and were pretty clean.
Dale - hope all is well there buddy...
From the looks of things it appears that shipping left a lot to be desired.
Currently I don’t have a thrower and to me this seemed like the most inexpensive and effective light to get. But now, based on members reactions, I sort of regret not spending the extra money and buying an SR51 for $50. Which isn’t really much more than $33.
The $38 Courui big head. De-dome it and see a beautiful beam pattern. The Jacob A60 is also a great deal for a small thrower. SUPFire F9 is a well built light, cheap, nice throw without being a major player. It’s like the C8’s but nicer made.
Thanks Tom, prc8 it