[♛ FreemeGB] Fireflies PL47 Gen II 4*XP-L/ Nichia/ SST20 Hi CRI 21700 Right Angle Flashlight - ENDED

Same here, no issues with Sofirn 21700 on mine. Got black SST-20 4000K.

Two more observations, look carefully, at around the 4 o’clock position, and I think I see a green wire trapped between the edge of the driver and the head. Also displacing the driver sideways. Maybe even a black wire as well.

I don’t see any witness marks on the driver or tail PCB contact rings, where the ends of the tube should have been making firm contact. Perhaps the torch is too new for these to have developed yet.

These witness marks were useful to study the poor contact problems of the first batch Q8, and might also be useful to study for those with PL47 issues. In the Q8, some went so far as to try inserting a ring of solid copper wire, to improve marginal contacts, and/or smoothing the uneven surface of the first Q8 tubes using e.g. some fine grit sandpaper on a flat piece of glass.

Ideally the witness marks should be even, and continuous over the full circumference, once developed.

Also consider simply measuring the length of the tube, the length of your cell, then the compressed length of each spring (that’s the tricky one), and do the calculation.

I still don’t like the look of the soldering of the springs to the PCBs, I see little evidence that the solder has wetted, or that there is sufficient quantity.

PS:, my apologies to the forum for being even grumpier than usual, and taking it out on some of you. Yes, I have been having to cope with a truly stressful situation for many months. But that’s no excuse.

Thank you for being so patient and tolerant.

Complaining at 1k posts, most do a giveaway! Lol call it like you see it Tom tom!

See post 1382. The black lights and the gold lights have different tube dimensions.

As it’s my first multiemiter TIR flashlight I’m not sure how optics should look like so I’m just gonna post this pic and you tell me.

Like I said - my first quad flashlight and actually first with semi-clear optics. The beam is nice and even so not a real-life issue. Was just wondering if it looks simmilar in D4/D4S.

Well, then I guess the quality of Fireflies flashlight really needs some extra attention as other manufacturers already rised the bar in this price point in the fit and finish department.
Can’t have it all. Innovative, well made, inexpensive. Choose two :smiling_imp:

Mine arrived today and I’m in love! This light is way more compact than I could imagine. The fit and finish are perfect and the optics look just as good as my D4.

The output on the Nichia version puts out much more lumens than I could ever need for my application (work). The tint…… absolutely beautiful!

I was waiting for this light to arrive before buying the E07, now that I have this light in hand I’m definitely picking the E07 up.

But, I understand Vinh will be putting Oslons in the E07, so I will likely purchase one from him. :+1:

Also, the button seems fine to me…

.003” (76 microns) would be a large tolerance even for mil spec thick hard anodising. More likely 50 microns at most.

Ordinary cosmetic coloured anodising would be no more than 25 microns thick. (that’s just .001”), and probably much thinner, even as thin as 5 microns. And by some early accounts, it is on the thin/soft side.

Then, the rule of thumb is that the anodising thickness is 50:50 build-up vs. reduction of the metal. I.e. if looking at the inside diameter of a tube, even a top-notch mil spec thick hard anodise might result in no more than 76 microns overall reduction, compared with the thinnest cosmetic treatment. That’s an improbable absolute most, and that’s being generous.

https://metalfinishingsltd.co.uk/articles/anodising-dimensions/

0.4mm actual difference ? That’s an order of magnitude worse than even my most worst case 0.07 mm estimate. So no, this theory doesn’t work. It does not explain the large difference in dimensions being reported.

I would suggest that these were two separate batches of tubes, machined slightly differently (I could also speculate why, but am trying to stick to only the facts and data that are beginning to build here, as precise people begin to receive theirs, and maybe post more photos).

Then anodised as separate batches (the colour dying is the second process (followed by the sealing) after the actual anodising, so no reason why a single run of tubes and other pieces etc. could not have all been machined in one run, then run through the treatment process simultaneously, with only the secondary dying and sealing different, as the final steps.

More flexible too, when you are only offering pre-orders, and not sure what the proportion of the two colour choices (nor emitters) will turn out to be.

Initial photos showed a hybrid colour scheme, black head and tail, champagne tube, which would have solved any colour mis-match issues, but turned out not to be popular.

Really not being negative here, just trying to reach out to FF to help them consider some basic stuff, and maybe make a few suggestions to those already with them, or on order.

Isn’t that why FF are offering BLF these first things first, to “kickstart” a run, shake out the bugs, get some revenue, hopefully generate a good buzz ? I’d hope they are in the mood to listen, and learn, and react swiftly, though it might seem a bit overwhelming to them at the moment. If so there could be a great future ahead.

It’s only their second attempt, after all. This is still recoverable.

Its a 50 dollar flashlight, its not a mercedes. I find that it is a bargain versus what i got and paid for at zebralight. And i love me some zebralight. Acebeam wants 120$ for a 70.2/21700. I really dont understand the problem.

There seems to be a minority here who have really specialized standards who speak loudest and longest and most often and just keep going on about it—and ultimately appear to be the sort that would argue about the color blue.

It might be appropriate in the spirit of objective analysis to preface some of your comments with, “i am really, really fussy. My expectations of a 50$ light is that it be a 100$ light.”

Alot of people seem to be happy with theirs.

Recoverable? You sound like the guy on the corner holding a cardboard square with, “the end is nigh” written on it in sharpie. You make it sound like they just put fish in your underpants.

Just breathe.

Oh and you apologized to the forum for being a grumpy pants. But as expected not to the individuals whom you chose to vent your angsty negative mental energy on.

Still waiting.

:+1:

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You make it sound like they just put fish in your underpants.
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Why is this so stinking funny. I just keep laughing, than reading again, then laughing some more. I’m so immature.

As someone not familiar with Oslons how do they compare to say XPL HI? Lumens?
Throw? Heat? Thanks!

[Quote=mildlyangryjohnny]you make it sound like they just put fish in your underpants.
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Youre not immature

Because it -is funny. I laughed too, as i thought of it…As i was typing rational thoughts and common sense into my phone…

—i pictured a wild haired crazy man, in a dark smokey room, banging away hate and fear and desperation into his computer with reckless abandon, and the guys from fireflies were there with a bucket of sardines just slipping them into his skivvies one by one as he grumbled and banged away on the keys. Shaking his head violently. Raising a fist every now and again and shaking it all about, as he beat the hell out of his poor keyboard. As if to say, “YOU SHALL NOT PASS!!!”

And i did it again. Well maybe i am immature as well.

I am already using just that - 23 mm would be a better fit but this works well enough.

That feels a wee bit perjorative. Almost like you are insulting me. Kind of a wee bit richard-ish, no? It feels like we are no longer friends the way you said that with a sneer—and exclamation. Dont like it bub. Not one bit.

Therefore,

I think you also have fish in your underpants.

My batteries fit fine. You might also consider in the spirit of objective analysis to preface your comments with, “i am also fussy with undiagnosed aspergers, and my social graces are shall we say lacking.”

Leafeye, I’m with you. There’s a lot of unknowns. It’s not perfect, but I broke the rule, it worked with the awesome Q8. I’ll wait on mine there still on New Jersey!

The 50E wasnt even available when this light was being designed IIRC. I think some fault falls on battery producers if the dimensions of cells that should be identical in size are different enough for some to barely fit.

Tue 50e was well released bro. Go back to bed.

Can someone please answer this fine gentleman. I don’t know the answer. I just know the Oslon is a SUPER THROWER!