YEZL Y3 CNQUALITYGOODS Group buy. 3 Versions. See post 274 for delivery details.

Cereal_killer · September 15, 2014, 4:45am

Hm, the switch on my light doesn’t seem to work, the tail works fine but the side switch is intermediate at best.

MRsDNF · September 15, 2014, 4:58am

Have you contacted Ric? Occasionally i have had the same problem with different lights and most of the time it appears to be the contacts in the switch not contacting which is usually fixed with a squirt of 5.56.

https://www.google.com.au/search?q=5.56+lubricant&rlz=1C1CHMO_enAU521AU521&es_sm=93&biw=1133&bih=945&source=lnms&tbm=isch&sa=X&ei=2HEWVLvZNYGHuASem4HgBQ&ved=0CAYQ_AUoAQ

Cereal_killer · September 19, 2014, 7:32pm

Good thing you linked that, reading it I was sure you were meaning I shoud shoot it with my AR lol.
I haven’t contacted him yet, it got here 30 minutes before I went out of town last week and I just got home today, I was probably just going to make a whole new driver board for it anyway (instead of piggybacking mine on) and use a more common switch, this one looks normal but had a 1.45mm pin spacing.

Edit: mine also has a pretty large flaw under the electroplating on the reflector, looks like a grain of sand or something but its under the plate so if I tried anything it’d just flake off. That’s what I get for buying the very last one.

nofearek9 · September 19, 2014, 1:59pm

am i the only one who have not received yet the y3 ?

downlinx · September 19, 2014, 2:03pm

i got my replacement yesterday and it is working flawlessly.

MRsDNF · September 19, 2014, 8:54pm

Have you contacted Ric?

dodo · September 19, 2014, 9:33pm

I recived it today

Ciao

Gj1 · September 19, 2014, 10:18pm

ImA4Wheelr:

aoeu wrote:

What causes the doughnut beam?

Not sure. My guess is that when you go beyond the focal point of the reflector (Bottom of the parabola) the diameter of the dark area where no light hits the reflector spreads out. All I can say is that I have done what you are talking about several time and I get a doughnut hole. It probably disappears at some distance from the light, but I never checked for that.

Sorry I don't have any more info for you about it.

Regarding dedoming MT-G2. The emitter is just too damn big for me with the dome. I have dedomed every single one of mine so far. I have to admit though, they all look ugly up close with the light off. Like fellfromtree alluded to, it does create a yellow corona around the hotspot. I doesn't bother me, but some folks remove the phosphor that is surrounding the die to get rid of it and to make the hot spot cleaner and smaller.

The whole point of a paraboloid reflector is to collimate the light striking it into a beam. Look along the axis of the flashlight into the reflector, perpendicular to the face of the light. What do you see at each point of the reflector? It should be the emitter if it's properly focused. What do you see near the center? A hole. There's no collimated light being emitted hence the hole in the beam. The emitter isn't a point source and the reflector isn't a perfect, idealized paraboloid so divergence with distance not only increases spot diameter but also eventually fills in the center.

locusto03 · September 20, 2014, 11:49pm

FYI, the Maxtoch holster from BG fits the Y3 like a glove.

I got tired of waiting for the Niwalker recommended by Tom E(?) to be restocked by FT.

nofearek9 · September 23, 2014, 10:33am

at last arrived today BUT the reflector has a “dirt” spot

any chance i can find a replacement for the reflector ?

MRsDNF · September 23, 2014, 10:46am

I would contact Ric about your reflector.

nofearek9 · September 23, 2014, 2:55pm

thanks,send them a message throw the website.
about resistor moding i have resistors writen on them 100 ,101,105 and 121 are in the same range as the r150 and r180 ?
got my answer here : SMD resistor code calculator

g_sintornillos · September 23, 2014, 12:38pm

Mine came with many scratches and dents. Good packaging. Certainly it had scratches and dents before being packed.

Cereal_killer · September 23, 2014, 12:50pm

Mine is exactly the same way. After taking 30+ days to get here it’s not worth if to try to get it replaced since its a personal light, if it was for a customer build absolutely but I’ll just live with it.

nofearek9 · September 23, 2014, 1:15pm

thats the problem ,its not mine ,i will build it with mtg2 for another guy.

Werner · November 11, 2014, 3:58pm

Just ordered the right cell and thought maybe others are also searching:
http://www.gearbest.com/chargers-batteries/pp_104846.html
Coupon: Keeppower
Price after coupon 10.75$
Comes to 12.74$ total with 1.99$ shipping included.

From HJKs test the Keeppower 4200 seems to be the best cell.

Tom_E · November 11, 2014, 4:37pm

I dunno... KP does not make cells - they re-label them. So, are these any better than KK 4000's that test out over 4200 mAh capacity, and are rated at lower internal resistance than the KP and for less than half the price of the KP's? (0.05 vs. 0.06 ohms)

I really dunno with these. If we knew where the cell came from, it would help. HKJ's discharge chart looks better for the KP's yet hist internal resistance doesn't reflect that.

wight · November 11, 2014, 5:39pm

Note that those tests were done approximately 1yr apart. The newer tests are with KeepPower’s cells.

EDIT: also, are those KP’s new labels? I can’t get to their website right now…

Tom_E · November 11, 2014, 5:43pm

KeepPower cells? Since when? Never heard of this. They've done this for years - re-label the cells, so their unprotected cells are equivalent to the manufacturers. They "were/are" well known for their protection circuitry.

If KP actually makes cells, that's news to me. They used to be high qual and well known for that, using only top brand cells like Panasonics. More lately (last 1-2 years), they seem to go out of the way to hide the brand name of the cell - I think so they can change it mid-stream, or batch by batch, making the quality and specs unpredictable - they've done this in the past. I've gotten cheaper made protected 26650's from them in the past - thin metal button tops that dent easily, etc -- I got screwed there, and others have, including dealers. They don't even tell the dealers, at least this is what happened a year ago.

wight · November 11, 2014, 5:53pm

Tom E:

KeepPower cells? Since when? Never heard of this. They’ve done this for years - re-label the cells, so their unprotected cells are equivalent to the manufacturers. They “were/are” well known for their protection circuitry.

If KP actually makes cells, that’s news to me. They used to be high qual and well known for that, using only top brand cells like Panasonics. More lately (last 1-2 years), they seem to go out of the way to hide the brand name of the cell - I think so they can change it mid-stream, or batch by batch, making the quality and specs unpredictable - they’ve done this in the past. I’ve gotten cheaper made protected 26650’s from them in the past - thin metal button tops that dent easily, etc — I got screwed there, and others have, including dealers. They don’t even tell the dealers, at least this is what happened a year ago.

Sorry Tom E, that’s not what I meant to say. KeepPower re-wraps, we know that. What I was trying to indicate was that KP unit tested by HKJ was tested nearly 1yr after the KK unit. It’s quite possible that the KP unit was just a re-wrap of the latest KK unit - we can’t assume that HKJ’s most recent KK test represents the current KK cells. Is that better?