Unpopular Flashlight Opinion Thread

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Lightbringer
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Wellp, this is about unpopular opinions, so in that sense I guess it fits, if everyone’s getting their undies all in a twist. LOL

Thing is, I’ve seen phone “flashlights” in 3 different varieties: screen goes full white, lit by the backlight; camera-flash LED doing double-duty as a “flashlight”, and a dedicated teeny 5mm LED or so being used as an actual flashlight. They’re all kinda silly, just as pliers on a SAK. They might be better’n nothing, but not by much.

I’ve got key doodads that slip onto the key itself and have a built-in coin-cell and LED. I’ve also got dedicated blanks to serve that function (available at your friendly neighborhood locksmith). Squeeze to light it up, and it lights up the keyhole perfectly right where the key’s going. Limited lifespan of the cell, usually nonreplaceable, so not quite suited for general-purpose lighting.

In any case, when something rolls under the couch, or falls under a car-seat, or drops down sewer-grates, using a cellphone for lighting would be either useless or retarded (unless you don’t mind the phone falling down the sewer, in a toilet, between cabinet and wall, etc.).

So even an AAA light would be better. Some twisties being barely bigger’n the cell itself, they could be put to good use by quite many people.

But hey, we have our choice of AAA/10440, AA/14500, 16340, 18650, whatever. You wanna carry a Q8 strapped to your belt, hey, go crazy.

So… can’t we all just get alooooong? [snark]

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BlueSwordM
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@Lightbringer, using the full screen backlight doesn’t seem very efficient, since intensity is absolute crap at that point.

And yes, we can get along, no problem.

It’s just that with flashlights, we have every choice imaginable in terms of size that phone lights should only be used as a high CRI camera flash, and nothing else.

I mean, we have tiny rechargeable button cell lights, AAA lights, 18650 lights, lights for every size!

We even have lights for women’s pockets… which don’t exist for some reason on some women’s pants.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Lightbringer
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BlueSwordM wrote:
And yes, we can get along, no problem.

Was beginning to wonder, being that people are getting so “invested” in an opinion…

BlueSwordM wrote:
We even have lights for women’s pockets… which don’t exist for some reason on some women’s pants.

I still don’t get that. Sounds like a manufacturing defect, but it’s by “design”.

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BlueSwordM
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It’s not a bug, it’s a feature

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

BurningPlayd0h
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Sure, desk jockeys may never need much more that a cell phone light…

but plenty of people don’t work at a desk all day or live in the city where there is a ton of street lighting/light pollution.

I tried going back to keychain light only (~80 lumens) for a while and was wishing several times throughout both the day and night I had a bigger light with me.

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I don’t buy pants1 without pockets.

Then again, I usually don’t buy pants1 at all.

Pants1 are pants2.


——
1. American meaning.
2. British meaning.

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djozz wrote:
This thread invites people to make bold statements and that is the fun of this thread. So sounding a bit arrogant about your opinion is specifically in this thread, welcome and invites counter-opinion. IMO of course :-)

Cellphones suck.

"This too shall pass." -- Ancient Persian saying

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ToyKeeper wrote:
I don’t buy pants1 without pockets.

Then again, I usually don’t buy pants1 at all.

Pants1 are pants2.


——
1. American meaning.
2. British meaning.


Agreed with the first part. Trousers and shorts with no pockets are worth very little to me, even as loungewear, exactly because I can’t carry a light on them.

cetary
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Mixed emitter lights, i.e. a D4 with two 3000K and two 5000K, look like a manufacturing defect or a bizarre EOL light. Mixed emitters don’t consistently yield a BBL tint. You are still at the mercy of the tint lottery, but now you’re spreading yourself further out. Lee Minus-Green filters are a superior method that works consistently at producing “rosier” tints from green-biased emitters, yet no one seems to be talking about those? Oh yes, I wanted to add that the Lee filters, when applied to green or above BBL emitters have been shown by Maukka to improve R9 and even CRI values while emitter mixing worsens these values. The Lee filters also enhance the objective saturation values— R(g), and make colors pop.

Lightbringer
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So maybe there’s hope for my Quarks and Jetbeams?

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cetary
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They might help, assuming they have a lot of green, but you’re working with emitters that don’t push much red. You’ll be loosing out on output, the main reason one might go such an emitter in the first place. Still might be interesting if someone maybe does some spectral analysis tests?? You’re probably better off going high-CRI then objectively filtering to your hearts content in a manner that offers greater control and immediate flexibility. It’s trivial to swap filters, but it’s over an hour’s work to swap emitters back and forth.

Lightbringer
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The Quarks might as well be welded shut, and I hear (haven’t really tried it myself, other than hand-cranking) the Jetbeams are little better.

Would be nice to breathe a little life into ‘em.

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The LED light on my cellphone (HTC 10) is excellent. It has 2 emitters, one cool and one warm. Together they get a nice “averaged” neutral tint that to my eye leans a little warm. The only thing that sucks is that the hardware seems incapable of supporting a dimming function (not on OEM app & 3rd party can’t seem to do it).

I don’t use my cellphone flashlight much, because I usually keep a small AAA EDC light in my pocket. Or use the rechargeable Olight i1R on my car keychain. Those are far brighter and easier to wield. But, sometimes the cellphone light comes in handy. Easy to prop up and lean against something. Plus, the floody beam is very useful.

I really don’t get why people will go out of their way to say one particular kind of light is the best and diss all the rest. There are so many uses for the different form factors available.

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Scallywag
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djozz wrote:
Unpopular opinion: the FW3A has failed as my favourite EDC.

[snip]

So I'm back to the S1 and live with the limited battery life, but with daily use it is monitored well and I carry a spare battery in my work bag. In the meantime I still like my FW3A (currently with FA3 high CRI SST-20 leds) with all its greatness very much and will buy a second one :FACEPALM:

I have to agree a bit on the FW3A. The tail button needs to be recessed more (which would be at all, min currently seems to sit flush), or harder to click, or both. I frequently turn mine on when clipping it onto my back pocket. I've never had that issue with my other tail switch lights. I expected this light to dominate my pocket-time, but it hasn't. If I'm not out after night, I'm frequently carrying only my D25C or RRT01. If it's dark out, I will always take an 18650 light, and sometimes with a backup smaller light for fun. 

Also, I love that your EDC is a Supfire host. It's just... It's perfect for this forum. That tailcap is awesome, too.

Lightbringer wrote:
They're all kinda silly, just as pliers on a SAK.

My skeletool would like a word with you.

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Leatherman pliers are excellent.

SAK pliers are generally a joke.

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Scallywag wrote:

djozz wrote:
Unpopular opinion: the FW3A has failed as my favourite EDC.

[snip]


So I’m back to the S1 and live with the limited battery life, but with daily use it is monitored well and I carry a spare battery in my work bag. In the meantime I still like my FW3A (currently with FA3 high CRI SST-20 leds) with all its greatness very much and will buy a second one Facepalm


I have to agree a bit on the FW3A.

[snip]

I expected this light to dominate my pocket-time, but it hasn’t.

Not every light needs an electronic switch (side or tail).

In most use cases, the e-switch, with all the fancy firmware that it makes possible, is just a novelty or fad.

The long awaited FW3A has convinced me if this.

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raccoon city wrote:

Leatherman pliers are excellent.  SAK pliers are generally a joke.

Agreed. 

I love my Leatherman Wave, but for the pliers function I find the SOG Powerlock to be superior. It has a compression style mechanism that multiplies the force. Really nicely done. The rest of the functionality is good but a little oddly implemented.

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I use my skeletool pliers too. It only took about 30 generations of Leatherman and other pocket pliers to get them to be usable; honorable mention going to the Leatherman Wingman which IMHO was the transition from useless pocket pliers to useful pocket pliers. The Skeletool has a good plier set, solid for unscrewing and excellent for “wrenching” things apart.

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The Great Firewall is blocking a great many Internet sources today, in commemoration of China’s 1989 Six-Four.

The communications problem is not with your flashlight supplier.

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https://www.theregister.co.uk/2019/06/05/liion_battery_scan_charging/

Quote:
Bad news from science land: Fast-charging li-ion batteries may be quick to top up, but they’re also quick to die

Boffins at Purdue University in America say they made the discovery while conducting atomic-level scanning of fast-charging lithium-ion battery electrodes. The team, led by Kejie Zhao, an assistant professor of mechanical engineering, used multiple scanning techniques and computer-aided enhancements to take a deep dive into a particular power pack, and found what may be the Achilles’ heel of fast charging.

Essentially, what happens is that fast charging seemingly damages the battery’s electrode particles, forcing the device to lose capacity and shorten its lifespan. This degradation is caused by lithium ions whizzing between internal electrodes, we’re told.

“These fast charging batteries are often decked out with thicker electrodes, but that doesn’t prevent damage,” explained Zhao this week. “The capacity of batteries doesn’t depend on how many particles are in the battery; what matters is how the lithium ions are used.”…

and also

Quote:
https://www.theregister.co.uk/2017/08/30/lg_hitachi_nec_65m_battery_pric...

… Three battery manufacturers agreed to settle a lawsuit that claimed they conspired to fix the price of lithium-ion battery cells for more than a decade.

LG, Hitachi, and NEC will join Sony (who previously settled) in a deal to pay out $64.65m [PDF] Americans who purchased any device containing one of their cylindrical li‑ion battery cells.

The cells were sold between January 1, 2000 and May 31, 2011 and were used in everything from laptop PCs to video cameras and power tools. …

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hank wrote:
https://www.theregister.co.uk/2019/06/05/liion_battery_scan_charging/
Quote:
Bad news from science land: Fast-charging li-ion batteries may be quick to top up, but they’re also quick to die

That’s why I still charge 18650 cells at 500mA. It takes longer, but so far, I’ve never needed to replace a cell.

Except sometimes if I’m in a hurry, like when I’m doing thermal tests and I want to get the next test ready sooner, I’ll charge a cell at 1000mA. Still not high enough to count as “fast charging” though.

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Anyone paying attention to cell phone batteries knew this already. 

I used to repair mobile phones, including battery replacements. The heavy-user, always-fast-charge crowd is the first to need replacements. Of course, cell phones are usually charging to 4.35V anyway, which is another significant cycle life reduction. 

The only thing I'd seen that was counter-intuitive to me about fast charging, was data that suggested Teslas that used superchargers more often, had better battery longevity. I unfortunately can't find that source anymore, but as I recall it was gathered from an owners' forum. 

Old Lumens Contest 2020 - Hand-made light category

ZL SC62(w) | Jaxman E2L XP-G2 5A | Purple S2+ XPL-HI U6-3A | D4 w/ Luxeon V | RRT-01 | Purple FW3A, 4000K SST20 | Baton S1
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I’ve probably posted this before, but phones are often very bad at battery care. People always seem to want their phones charged to 100% at all times, so the manufacturers tend to make the phones charge too fast and then top up the charge again any time it gets below like 97%. This destroys the batteries pretty quickly.

For example, here’s the charge cycle on one I measured. After it reaches 100%, it runs on battery power for a bit and then tops up, then runs on battery and tops up, etc… forever. Rocking back and forth across “full” is terrible for the battery:

After a while, the battery started to expand… and it didn’t take long before it got so big that the back cover wouldn’t fit any more. Here are two identical models, one which was plugged in for a few months and one which was left alone:

Without the back cover attached, the battery is quite inflated:

Eventually it got so bad it looked like the battery was going to actually float away like a balloon. This was just a few days before the phone finally died. It took a little over a year to get to this point:

… and it’s not just off-brand lights which do this. I have a Google Nexus 4 which is doing the same thing. This is kind of an issue for me since it’s the light I use for Zak’s ceilingbounce app, and I want it to survive for a long time. I don’t use it as a phone though… now I just leave it off and unplugged except during tests.

OTOH, I also have an old Motorola phone from 2011 which still uses its original battery and it’s totally fine despite being in operation continuously for 8 years. So the problem isn’t universal. But it is at least common.

cistercian
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I HATE the color of LED lights below 5000. The colder the better for me! 6500+….perfect. Built in chargers are not acceptable. I use a Sky RC MC-3000 and a MAHA 9000. I love my cells and want to keep them a long time. And I can quick charge if I am in a hurry too! Stainless steel is worthless for hosts…it is a poor heatsink compared to aluminum. Heavier too. Copper hosts suck unless you want to see how fast they can bore a hole in your pocket. Pocket clips on flashlights are retarded. If it is small and light, pop it in your pocket. If it is too big for that, a holster is better.
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cistercian wrote:
I HATE the color of LED lights below 5000. The colder the better for me! 6500+….perfect. Built in chargers are not acceptable. I use a Sky RC MC-3000 and a MAHA 9000. I love my cells and want to keep them a long time. And I can quick charge if I am in a hurry too! Stainless steel is worthless for hosts…it is a poor heatsink compared to aluminum. Heavier too. Copper hosts suck unless you want to see how fast they can bore a hole in your pocket. Pocket clips on flashlights are retarded. If it is small and light, pop it in your pocket. If it is too big for that, a holster is better.

Nice! Very unpopular – at least in my opinion. I do like the MC-3000 though.

gman7228

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ToyKeeper
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cistercian wrote:
I love my cells and want to keep them a long time. And I can quick charge if I am in a hurry too!

OTOH, with current tech, quick-charging and long cell life are mutually exclusive.

Quote:
HATE … worthless … suck … etc …

That reminds me. I’d like to add something which which has come to mind several times in the life of this thread, and might be an unpopular opinion: This is the unpopular opinion thread, not the quarrelsome proclamation thread. It’s a fine line sometimes, given that the nature of the thread kinda encourages flexing, but my unpopular opinion is that strongly-held beliefs and disagreements can be expressed in a manner which isn’t combative.

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cistercian wrote:
I HATE the color of LED lights below 5000. The colder the better for me! 6500+….perfect.

Even for your home lightning ? Shocked
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Yes! It is hard to find really cold lights too!

cistercian
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ToyKeeper wrote:
cistercian wrote:
I love my cells and want to keep them a long time. And I can quick charge if I am in a hurry too!

OTOH, with current tech, quick-charging and long cell life are mutually exclusive.

Quote:
HATE … worthless … suck … etc …

That reminds me. I’d like to add something which which has come to mind several times in the life of this thread, and might be an unpopular opinion: This is the unpopular opinion thread, not the quarrelsome proclamation thread. It’s a fine line sometimes, given that the nature of the thread kinda encourages flexing, but my unpopular opinion is that strongly-held beliefs and disagreements can be expressed in a manner which isn’t combative.

Sorry about that…I was ranting… I did not mean to offend at all. It is true quick charges reduce cell life…so I almost never do it. But it is nice to be able to.

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