Gerber Infinity Ultra is available in quite sparse amounts on the interweb.
A few years ago I ran a test with my Thrunite Archer A1 V3 in firefly mode, which is advertised below a lumen. I got 21 days on an alkaline battery. I must have has more spare time then, as I measured the battery voltage and current twice a day and recorded the data.
The battery ran down to 0.88V before the light came out of regulation, and I stopped the test then. My TH20 I tested with a power supply, and it was regulated down to 0.3V.
These regulated lights don’t do as well with being vampire lights, as the current demand goes up as the voltage goes down to stay in regulation. Simple resistor regulated lights do better as vampires, or the are some “joule theif” circuits that are even better than a resistor.
I’ currently running my Rofis R2 AA light with an alkaline battery, I think its 4 days in so far. The currents a bit higher than the Thrunite Archer A1 V3, I’m expecting maybe 1/2 the run time or less.
definitely, that is why I have a C01 w 5600k Yuji on my modding visor:
I respect your quest for an AA version
which are your top 2 so far?
and how low do you go, in lumens, before you dont count it as practical
my aaa thrunite has a respectable 0.09 lm low… at that level, my vision is scotopic and it makes no difference what the tint or CRI is… I cant see colors at that level
so, if you want to have a high CRI cockroach, what is the minimum lumen level at which we can still see colors, and withing what distance do we want to be able to see, just in front of our nose, or just in front of our feet…?
scotopic light level depends on target distance also… for example at 0.1 lumens I can see high CRI red color at a distance of 1 foot or less, but at 5 feet I cannot see the object is red, it just looks dark brown, like it does with a low cri source
Im not really clear what the following quote means… but maybe it helps others learn more about scotopic levels
https://docs.agi32.com/AGi32/Content/references/Photopic_Mesopic_Scotopic\_-\_Concepts.htm
Scotopic: This term refers to rod vision and corresponds to an adaptation level below 0.01 cd/m2. The peak sensitivity of the rods is at 507 nm, in the blue-green part of the visible spectrum. (See blue curve in figure.) While there may be some (very little) cone activity at 0.01 cd/m2, once the light level drops to 0.001 cd/m2, only the rods are active.
At this point, the ability to discern colors is gone. In addition, since there are no rods at the fovea and the cones there are not receiving enough light to be stimulated, the ability to discern fine details is gone.
This light level is what you will find on a moonless night out in the desert, far from any town or highway luminaires. … With light only from the stars overhead, you will be able to see large objects like boulders and shrubs and perhaps a rabbit scampering by. But no colors, and you can’t read the newspaper!
I know! Saw a few on Ebay but I was not even sure if I would receive one with wear and tear on it.
Fortunately my younger brother is coming over from Canada soon and has bought one for me HERE. !
Henk4U2 you’ll love it.
Built like a tank.
$30…. ouch
Henk4U2 you’ll love it.
Built like a tank.
They also have one of the smoothest tail cap twisty on and off’s you’ll ever use. Very fine threads with good machining.
Not easy to get apart but can be modded with a better led.
my younger brother … has bought one for me
congrats!
$30…. ouch
lol, its only canadian dollars
does Gerber Infinity Ultra cause alkaline batteries to leak?
also at what voltage can it drain to?
does Gerber Infinity Ultra cause alkaline batteries to leak?
Good question!
I don't know the real answer, but I would guess that alkaleaks will gladly leak in anything you put them in.
Just a guess, though.
They’re hateful little things. They’ll leak just for spite.
Build my AA vampire light from plumbing parts a year ago. All fit in nicely althought it’s heavy due to brass.
It glow around 5 lumens and run about a month with full AA battery until they battery is completely dead.
Would love to find lighter version for EDC.
Tail stand
forward clicky switch
head stand
Build my AA vampire light from plumbing parts a year ago. All fit in nicely althought it’s heavy due to brass.
It glow around 5 lumens and run about a month with full AA battery until they battery is completely dead.
Would love to find lighter version for EDC.
Tail stand
forward clicky switch
head stand
I like it!
It kinda has a steampunk vibe.
$30…. ouch
PP fees included that is a fraction under €26 at AMZ CA…
Which is a lot better than the amount I was contemplating the time that Gerber was on AMZ DE .
and a alkaleak will just improve the patina.
verdigris by duraleak!
Build my AA vampire light from plumbing parts a year ago. All fit in nicely althought it’s heavy due to brass.
It glow around 5 lumens and run about a month with full AA battery until they battery is completely dead.
Would love to find lighter version for EDC.
Tail stand
forward clicky switch
head stand
Gerber Infinity Ultra is available in quite sparse amounts on the interweb.
Thanks for the links timbo114
Some of them have quite expensive shipping fees (half the price of the light…) but I will see if them!
A few years ago I ran a test with my Thrunite Archer A1 V3 in firefly mode, which is advertised below a lumen. I got 21 days on an alkaline battery. I must have has more spare time then, as I measured the battery voltage and current twice a day and recorded the data.
[…]
Interesting data sbslider! If I may ask, you just left it to run during those days without stopping the test to take some voltage measurements?
I wanna do a test with some of my AA lights, with alkaline batteries inside to see how long they last. The AAA lights I will probably test are Skilhunt M150, Tool AA V2.0, Sofirn SP10A, Manker E11, Wuben E05, and the AAA Sofirn C01.
definitely, that is why I have a C01 w 5600k Yuji on my modding visor:
[…]
I respect your quest for an AA versionwhich are your top 2 so far?
and how low do you go, in lumens, before you dont count it as practicalmy aaa thrunite has a respectable 0.09 lm low… at that level, my vision is scotopic and it makes no difference what the tint or CRI is… I cant see colors at that level
so, if you want to have a high CRI cockroach, what is the minimum lumen level at which we can still see colors, and withing what distance do we want to be able to see, just in front of our nose, or just in front of our feet…?
The C01 in warmer tint is probably my favourite High-CRI light I have! Despite I like the 5600K too!
Having a AA light like that would be the best solution for me in what concerns this quest (durable in host and runtime, single mode, …put it in somewhere and it will last… )
I am comfortable when using a light below 0.5 lumens (I have no way to measure how low in lumens I can go, sorry), so to light something nearby it would not raise many questions. In a night scenario, the RRT01 in its loooow modes is enough for me.
I will have to let the C01 almost drain the battery it has inside for months to see how low I can go before it is not useful anymmore!
I just want a light that could eat the almost depleted batteries and still give some useful amount of light
[…]Built like a tank.
This
$30…. ouch
But this
does Gerber Infinity Ultra cause alkaline batteries to leak?
also at what voltage can it drain to?
Good questions! Also, how low in voltage can an alkaline go before stopping the light from functioning? 0V? Higher?
I took the battery out twice a day and measured the battery voltage unloaded, and the current into the light via a tailcap measurement.
I took the battery out twice a day and measured the battery voltage unloaded, and the current into the light via a tailcap measurement.
Thank you very much for the details! Didn’t have the tailcap measurement in my mind!
I will put the data in an Excel sheet and note down all the aspects I can remember, including these!
Thanks again!
I’m glad someone finds my methods useful.
I’ve been using my Enogear AA (Stainless Steel) to drain spent alkaleaks (with <1.2 volts) cells from my home electronics (home security alarm panel) and from workplace battery recycle tub.
With a white thread tube the Enogear AA is used as nightstand/night light for my toddler boys. Occasionally I would use the Thrunite T10 Aluminum as a battery vampire (joule thief) also.
With the Enogear on lowest mode, the light will cut out when alkaline AA is about 0.7-0.8 volts (per my Nitecore D4 charger).