Erwinyte AAA -- a brief review

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lampeDépêche

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Jon Slider the other night drew my attention to a new light available on AZ, the "Erwinyte" AAA. I purchased one, and here is my brief review: I'll be returning it.
The good things:
The light bears a strong physical resemblance to the old Thrunite Ti3 (or Maratac), but it is about 3mm shorter.
I ordered the NW option, and the color is quite warm -- probably around 3000K. I cannot tell how high the CRI is, but I thought it brought out reds, oranges, and browns very successfully. It's an SST-20, and I find no fault with the quality of the light.
The reflector is decent. Less of a hotspot than the old Ti3, a bit ringy, but not too bad.
The high level may not be exactly 180 lumens -- I cannot tell -- but it is a bit brighter than the old Ti3's high mode of 120. I would guess it is at least 150, so no complaints there.
The firefly is good, though not as low as the 0.04 that it claims to have. Even the Ti3's claimed 0.04 is more like 0.1-0.2, and the Erwinyte is probably more like 0.3-0.5. The Ti3 tailcap reading is about 5ma, the Erwinyte is 11ma, so roughly twice the current. It's a different emitter and driver, so I cannot say that the lumens are exactly doubled, but something like double or triple the output. I do not list the higher lumens on firefly as a bad feature, because a lot of people may prefer the slightly less extreme firefly mode. It is still a sublumen mode, for the sublumen fans, but not as low as advertised.

The bad things:
The website promises four levels: firefly (0.04), low (12), medium (60) and high (180). That's what the paper documentation says, too. Except the second page of the paper documentation says it only has firefly, low, high, and that is correct: in fact, this is a 3-mode light, not a 4-mode light. It would be nice if the people writing up the user's guide could get their story straight from one page to the next.
The description of the cycle is not accurate, either: they say it goes FF-L-H-FF-L-H-Strobe, i.e. two complete cycles before strobe. Instead, it goes FF-L-H-FF-L-Strobe, i.e. the strobe replaces the second High mode.

Here is the absolute worst thing, and the reason I am returning it: this light always comes on in the next mode in the cycle, no matter how long it has been off. There is no reset to the start of the cycle, as the Ti3 had. If you used Firefly mode two months ago, it will turn on in Low. If you used the second Low 2 years ago, it will turn on in Strobe. It turns on in Strobe every sixth time you turn it on. There is no way to avoid it. There is no getting around the Strobe.
If you bought this light so that you can wake up in the middle of the night and use a firefly mode to preserve your night vision, then here's a sick joke: it is going to come on in Strobe mode, 1 in 6 times. That is not acceptable.

The switching also has a funny lag, like a noticeable pause of a few milliseconds before the light turns on. Not a terrible thing, but a bit odd.
Packaging: cute tin box with foam cut-outs. Short chain with a lobster-claw, extra O-ring. There is one cut-out clearly intended for a silicone diffuser, but no diffuser is included.

In general, this light feels like it is not ready for prime-time. The lack of a fourth mode -- a documented fourth mode! -- is a problem. If the driver had a normal reset -- i.e. if it always came on in Firefly -- then I'd put up with the other problems. But forcing me to see Strobe every sixth time is the dealbreaker. Back it goes.
 

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this light always comes on in the next mode in the cycle, no matter how long it has been off
aargh
thanks for taking the time to review the light

fwiw, the Next Mode Memory problem, can sometimes be solved with the Pencil Mod.. (that is for an Astrolux AAA)

this is where the pencil mod needs to be done to a Ti3 that suffers from Next Mode Memory:
img].jpeg


The light bears a strong physical resemblance to the old Thrunite Ti3 (or Maratac), but it is about 3mm shorter.
The Ti3 V2 was slightly shorter than earlier Ti3..

Next Mode Memory is a Total Deal Breaker, I dont blame you for returning the light.
 
Jon -- tell me more about "pencil mod"? You do something to a capacitor, using a pencil?
I have not yet packaged it up and sent it off, so if there's a way to fix the UI I will try it and report back.
ETA: ah -- found your earlier discussion, and the picture-tutorial, by searching on "pencil mod".
Interesting -- shorting the capacitor.
I will try this tonight and report back!
 
fwiw, the Next Mode Memory problem, can sometimes be solved with the Pencil Mod.. (that is for an Astrolux AAA)

this is where the pencil mod needs to be done to a Ti3 that suffers from Next Mode Memory:
Jon -- Any advice about how I can tell which of the capacitors I should be trying to short? Suppose there are a couple of capacitors visible on the pill -- do I just try one and see what happens? Or is there a visible clue?
 
I imagine there will be more than 1 capacitor. I suspect it would be trial and error. the nice thing about using a pencil is its easy to erase. It's possible you will damage the light shorting a capacitor. I suppose that's what returns are for . . . .

Seems like a decent light if you can fix the NMM issue. The three modes present seem pretty nice.
 
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Any advice about how I can tell which of the capacitors
clic Here to see photo of Ti3 driver ;-)

does the Erwinyte driver look the same?

The three modes present seem pretty nice.
agree, for someone looking for a sublumen low

On the Ti3, there are 3 main modes, plus strobe as the 4th mode, if the 3 modes are cycled twice. But cycling through strobe is Not required, on a driver that does not have the Next Mode Memory problem.

Normally, the memory will time out in about 3 seconds.. and the Ti3 reverts to starting on Low.
 
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clic here to see photo of Ti3 driver ;-)

does the Erwinyte driver look the same?
Don't have it on me -- at work today -- but will check tonight. I know the pill comes out relatively easily, because I did that already last night (shhhh! Don't tell AZ!). But I did not separate the driver from the rest of the pill so as to look at the circuit.
More tomorrow.
I imagine there will be more than 1 capacitor. I suspect it would be trial and error. the nice thing about using a pencil is its easy to erase.
That's why they put erasers on pencils!
[Pencil Company Representative: "We did not in fact put erasers on pencils in order to remove graphite from capacitors. We do not condone the use of our writing instruments for modifying electrical circuits."]
 
I did not get a chance to try the Pencil Mod last night, and this morning I decided to return the light without trying the mod. I don't know how long the mod would last, or how well it would work, and I also don't think I should have to do that on a $25 dollar light. It also feels important to give the mfr. some direct feedback, i.e. Not Good Enough.
It's a pity, because if they could cure the Next Mode Memory issue then this would be a pretty good replacement for the old Thrunite Ti3. I don't know of a better one out there. But this ain't it.
 
if they could cure the Next Mode Memory issue then this would be a pretty good replacement for the old Thrunite Ti3
agree

there was a batch of Ti3 that also had drivers with Next Mode Memory

apparently those faulty drivers have now appeared in the Erwinyte.. (which imo is manufactured in the same factory as the Ti3)

My guess is Erwinyte will not pay Thrunite to replace all the faulty drivers. I expect Erwinyte will just put the lights on sale, to liquidate inventory.
 
apparently those faulty drivers have now appeared in the Erwinyte.. (which imo is manufactured in the same factory as the Ti3)
That's a very plausible conjecture. But I had not known that about the Ti3. I have a few of them, and I suppose I have been lucky -- I do not think that any of mine suffer from NMM.
 
I do not think that any of mine suffer from NMM.
none of mine either

ime first came the pencil mod for Astrolux A01 (not all batches had the NMM problem):
fbqHO1w.jpeg


then when the Ti3 batch came out with NMM, someone figured out where to apply the pencil mod to that driver:
img].jpeg


we dont actually know, yet, whether the Erwinyte driver looks the same as the Ti3 pictured above
 
Haven't shipped off the return yet, so I thought I'd look a little closer. I could not open up the pill, because the disc is secured by four metal fingers, a bit like the way a jewel is mounted on a ring. There was one cap visible on the side towards the battery, so I scribbled some graphite on that, but it had no effect on the NMM problem.
To get to the back side of that circuit board would involve more strong-arming of the pill than I want to do, given that I'm returning it. So, I reassembled, checked that it all works just as before, and packed it up again. Photos below, just for the archives.
I cannot be sure, but from the evidence of what is on the battery side of the board, I doubt that the opposite side looks like Jon Slider's photo of the Ti3 board.
 

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Haven't shipped off the return yet, so I thought I'd look a little closer. I could not open up the pill, because the disc is secured by four metal fingers, a bit like the way a jewel is mounted on a ring. There was one cap visible on the side towards the battery, so I scribbled some graphite on that, but it had no effect on the NMM problem.
To get to the back side of that circuit board would involve more strong-arming of the pill than I want to do, given that I'm returning it. So, I reassembled, checked that it all works just as before, and packed it up again. Photos below, just for the archives.
I cannot be sure, but from the evidence of what is on the battery side of the board, I doubt that the opposite side looks like Jon Slider's photo of the Ti3 board.
Good on ya for trying sir. Folks, on three let's all say, "Thanks lampeDepeche!" One, two, three......Thanks @lampeDépêche! Now someone send him a Gerber Infinity Ultra for pete's sake!!
 
Good on ya for trying sir. Folks, on three let's all say, "Thanks lampeDepeche!" One, two, three......Thanks!
Thank you, gurdygurds!
Now someone send him a Gerber Infinity Ultra for pete's sake!!
I am still happy to trade cash for these old beaters.... You know you've got one out in the glove box of your pickup....
 
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