Interest collect for a new Sofirn design: tube style18650, magnetic ring control, USB-C charging, 500 lm max (AKA grandma light)

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raccoon city
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djozz wrote:

Wow, I just had a look on the TLF page about this light, and they are already at 90 units now, with the 155 from BLF that makes 245 total.

In this pace the interest from just Germany overtakes the interest from worldwide BLF Wink

So, what you're saying is that Germany is trying to take over the world...

for a third time!  :O

Myke
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Im in for at least 1

Oli
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SKV89 wrote:
Oli wrote:
SKV89 wrote:
Here is a zeroair.org comparison of the runtime graph between Olight S2r II baton vs FW3A. The Olight driver efficiency and regulation is in a completely different league. !
that was before zeroair.org understood thermal configuration. A better graph would be his second attempt on his FW1A. But even then he is using batteries with much less capacities on all of his FW## tests.

But even the FW1A has far less lumens and efficiency than the Olight. The Olight maintains 500 lumens for almost 4 hours straight.

!{width:50%}https://zeroair.org/wp-content/uploads/2019/10/zeroair_reviews_lumintop_...!

That is his 2nd attempt on the FW1A. Scroll down just a little further and you’ll see his see 3rd attempt. I can’t link it. Edit actually look at his 3rd attempt.

You can't compare the big flashlight in the sky to the little flashlight in your hand.

LightObsession
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I’m interested in two with battery at that price point.

In order for me to actually carry it, it would need a good deep carry pocket clip to carry inside my back pocket. Otherwise it would be for occasional use.

My wife doesn’t use a clip, so a clip wouldn’t matter for her.

Something that I haven’t seen mentioned, but I think would be handy on any “granny” light is something that glows in the dark, so that the light can be found when needed.

I’ve never used any magnetic ring light, but wouldn’t grooves or ridges in the ring contribute at least a little to the anti-roll function?

SKV89
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Oli wrote:
SKV89 wrote:
Oli wrote:
SKV89 wrote:
Here is a zeroair.org comparison of the runtime graph between Olight S2r II baton vs FW3A. The Olight driver efficiency and regulation is in a completely different league. !
that was before zeroair.org understood thermal configuration. A better graph would be his second attempt on his FW1A. But even then he is using batteries with much less capacities on all of his FW## tests.

But even the FW1A has far less lumens and efficiency than the Olight. The Olight maintains 500 lumens for almost 4 hours straight.

!{width:50%}https://zeroair.org/wp-content/uploads/2019/10/zeroair_reviews_lumintop_...!

That is his 2nd attempt on the FW1A. Scroll down just a little further and you’ll see his see 3rd attempt. I can’t link it. Edit actually look at his 3rd attempt.

You mean this one? Compare it with the Olight that maintains 500 lumens for almost 4 hours, the efficiency is still no where close. Interesting that it can maintain 650 lumens or more though.

No-2-Ageing
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Lightbringer wrote:
Jerommel wrote:
djozz wrote:
@No-2-Ageing, as said before, I will not allow this light to become bulky or ugly, so a “bone shape” will not happen if it is up to me.
I don’t think he means it should look like a bone, Jos. LOL

He means that the head and tailcap diameter should be larger than the battery tube.
This is not uncommon in flashlights, it usually looks good too.

Bah. I call that the pipe-bomb look.

Yeah …..
Gentlemen: What we see presented by the ever industrious Mr. Lightbringer is the fusion of form to function.

One might say ‘Bah’ indeed; for to the present this thread has been eerily bereft of protestation, that this light, nay, moreover; any light, equipped with on-board charging equates in function, but not necessarily in form, to the fruit of Mr. Lightbringer’s researches.

Vital:
Promote speedy arrival of proper ageing REVERSAL medicine. It IS possible. - It's going to end not only the persistent curse of old age - but therefore - dying! We don't want to be the last generation to miss the boat. - Are you in?

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LightObsession wrote:
I’m interested in two with battery at that price point.

In order for me to actually carry it, it would need a good deep carry pocket clip to carry inside my back pocket. Otherwise it would be for occasional use.

My wife doesn’t use a clip, so a clip wouldn’t matter for her.

Something that I haven’t seen mentioned, but I think would be handy on any “granny” light is something that glows in the dark, so that the light can be found when needed.

I’ve never used any magnetic ring light, but wouldn’t grooves or ridges in the ring contribute at least a little to the anti-roll function?

A good deep pocket clip is always desirable, it is something that can be decided late in the design phase, but noted!

And yes, anti-roll function can be as basic as what you describe.

lumiere
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In for five (assuming USB-C to USB-C charging works).

tomas_f
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Interested!

djozz
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lumiere wrote:
In for five (assuming USB-C to USB-C charging works).

If Sofirn will get that done for the LT1, they should be able to do it for this one too. I will add it to the wishlist.
djozz
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djozz wrote:
LightObsession wrote:
I’m interested in two with battery at that price point.

In order for me to actually carry it, it would need a good deep carry pocket clip to carry inside my back pocket. Otherwise it would be for occasional use.

My wife doesn’t use a clip, so a clip wouldn’t matter for her.

Something that I haven’t seen mentioned, but I think would be handy on any “granny” light is something that glows in the dark, so that the light can be found when needed.

I’ve never used any magnetic ring light, but wouldn’t grooves or ridges in the ring contribute at least a little to the anti-roll function?

A good deep pocket clip is always desirable, it is something that can be decided late in the design phase, but noted!

And yes, anti-roll function can be as basic as what you describe.

That said, I’m not a pocket clip person, can there be reasons to not want a deep pocket clip, but a “normal” one instead?

djozz
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About the flashlight being visible in the dark, that sounds useful, but I hesitate that it should be done with a small led, like many BLF lights have behind the switch button. Apart from that it does not have a switch button, a even faintly lighted led that is continuously on when the flashlight is switched off will have say 100 micro-amp drain, no problem when the battery is charged once every two years, but when the light is in the drawer for 4 years it has emptied the battery. Is that worth the advantage of a locator light?

Oli
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djozz wrote:
but when the light is in the drawer for 4 years it has emptied the battery.

A. Grandma didn’t need this light.

B. Grandma is dead.
On a more productive note. I prefer lanyard holes that are large enough for paracord. I’m going to tell Grandma that she should hang this light up by her keys or her coat or by the door and if she’s stepping out after dark it should go with her.

You can't compare the big flashlight in the sky to the little flashlight in your hand.

legan710
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I’d rather put a bright “on” light at the “switch” to have a clear visible indicator that the light is still on. On low (especially in ramping) that is often not easy to see otherwise and will be a common problem “oh I thought its off”.

A locator light will just be confusing and in my opinion its not necessary as most people know where they put it at home (it is usefull when the light is in a backpack or similar, but at home there is dedicated place for the flashlight).

In addition, please make all switches/rings large enough and “grippy” while also easy to turn. Important is a easy visible and tactile feedback for the switch und positioning. hand eye coordination is just one of the things older folks loose too fast, so make it easy to know what one did by looking (visible marker) or feeling (physical marks)

The charging port needs to be easy accessable. those floppy plastic covers and most of the twisty srcew-on covers are a no go for grandma. she could never use it.

djozz
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I hope for a “best of two worlds” solution for the easy operation of this flashlight: magnetic ring visible and grippy enough while still making the light look good and not like a some bulky eldery-aid.

But we are many months away from a first prototype, there is ample time to evaluate these type of features.

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legan710 wrote:

……….
The charging port needs to be easy accessable. those floppy plastic covers and most of the twisty srcew-on covers are a no go for grandma. she could never use it.

Are you advocating a just-put-it-in-the-inductive-charger-by-the-door type?

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

hank
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Quote:
All of the current drivers in BLF type lights are so inefficient compared with Olight, Fenix and Nitecore that they are really just flashaholic toys rather than actual tools. …. The Olight driver efficiency and regulation is in a completely different league.

Would someone please start BudgetDriverForum?
And convince HJK to publish driver reviews?
Or failing that, find where we can buy better drivers to swap into our amateur hobbyist toy flashlights?

EDIT: oops. He’s been reviewing drivers for quite a while:

https://lygte-info.dk/info/indexLedDrivers%20UK.html

hank
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Quote:
when the light is in the drawer for 4 years it has emptied the battery. Is that worth the advantage of a locator light?

You could make it beep when the battery gets low, like a smoke alarm.
Older people already know what to do when they hear that (call a young person to find the damned thing).

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Hmmm… The charging and the parasitic drain when “OFF” are challenging..

Maybe it should be a 2S2P CR123A light?

Make the battery tube rectangular, like these Nitecores:

Won’t roll off the table.

Maybe enough for a thumb wheel (logarithmic potentiometer with a REAL ON/OFF switch) where the buttons are?

(just a thought)

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hank wrote:
Quote:
All of the current drivers in BLF type lights are so inefficient compared with Olight, Fenix and Nitecore that they are really just flashaholic toys rather than actual tools. …. The Olight driver efficiency and regulation is in a completely different league.

Would someone please start BudgetDriverForum?
And convince HJK to publish driver reviews?
Or failing that, find where we can buy better drivers to swap into our amateur hobbyist toy flashlights?

^This.

It’s rather telling that BLF doesn’t even have a dedicated driver subforum.

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In for two!

nuemtol
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Whatever happened to the Tool AA anduril that was discussed? I’m not getting grandma a 500lm li ion

hank
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I liked djozz’s review of the SD03, particularly that it can easily be used with gloves on.
http://budgetlightforum.com/node/66699
Is it moddable?
I’m always looking for lights I can mod to amber emitters, for myself and elderly friends whose sleep is easily disrupted by white lights.
This looks like an easily held onto shape and a simple UI.

Quote:
Operation:

To screw the switch clockwise to turn on, and rotate the switch to cycle through High→Medium→Low.

To rotate the switch counter-clockwise to cycle Low→Medium→High→Off.

gottawearshades
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Sounds interesting.

Sign me up for two!

hank
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PS, I edited my earlier post about drivers to correct myself.

HKJ has been reviewing drivers for quite a while:

https://lygte-info.dk/info/indexLedDrivers%20UK.html

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If not too late for this I would be interested in 2

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No-2-Ageing wrote:

The charging port should be MAGNETIC!

I disagree. I have Olights that use their special magnetic dock. They are most inconvenient when you can’t find the dock or forget to take it along and then find yourself needing to scramble for a charger that you can borrow. Pretty much impossible at times. Whereas you can alomost certainly borrow a USB cord or if need be buy a USB cord at the grocery, the pharmavy, etc.

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No-2-Ageing wrote:
The charging port should be MAGNETIC!

Why? Let them use the same USB cables they use with everything else. More likely to get used & not be lost

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In Smile

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I agree that the charging should be via USB. However superior in design and function magnetic charging is, IMO that will not outweigh the convenience using a universal standard that is present in most homes. And a USB port is for most people self-explaining.

Btw, the fact that I do not find specialised aiding things for eldery people look particularly elegant has nothing to do with wether or not I respect eldery people.

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