*BLF LT1 Lantern Project) (updated Nov,17,2020)

Ditto on the request. I can’t see anything either and get a “content not available”.

Indeed, post screen shot please :slight_smile:

So, if somebody had a “cold” and “rosy” emitter, and put it behind GITD, it would be “perfect”? :stuck_out_tongue:

Really, thinking about how Physics works, there would be no benefit to GITD “while in use” because no matter how it’s implemented, we can get a better quality light with just what we have already. GITD is pretty good as a locator after the lights are all turned off, but only until it loses its charge, which doesn’t take long usually. If someone wants a no-input-power-needed locator light source on their lantern, they should consider tritium vials instead.

And besides, we have the LEDs on the button, no?

These work fine. :slight_smile:

Please put me down for one lantern! Thanks!

Below is a side-experiment/project i been working on ever since the first iteration of a long-running “glow light” in the Steam Pipe light i built years ago for the OldLumens hand-made competition. (which the glow tube is still glowing some 5 years later on 2 AA batteries)

form my tests i started a couple years ago, the blue LED on the lower pic has been glowing quite well non-stop 24-7, 365 days a year on the same CR2032 coin Lithium Cell, ( which i just measured at 3.13 volts, after running since Nov,12th, 2017 on a 47K 1/8 watt film-resistor, and is still far brighter than any trit. The above three collage pics show a micro lantern i modified last year, it uses a unusual remote-phosphor 5mm warm-white LED with very high angle of emittance, which glows much brighter (even the warm white LEDs) than any trit, using a 300K film-type 1/8 watt resistor on two CR2032 cells in series. With the 300,000 ohm resistor, this tiny lantern in its glow mode should glow non-stop for 7 ~ 8 years or more, much the same how these coin cells can keep a computers CMOS alive for a decade or more non stop. I been adding these CR2032 glow-modules to many of my lanterns, lights, etc. as a night light & locating light. The same idea could be incorporated in the LT1 as a night location night-light inside the head shade area or switch, running off a separate CR2032, and not even need the 18650 cells in it to power it.

interested!

@ DBSAR, if I understand your previous post, you connected a fairly large resistor, an LED, and a CR2032 cell in series and are expecting it to be lit for 7 years? Sounds like an interesting addition to the lantern. I would be interested in learning more about this in a different thread for sure. I would not have guessed the 10uA of current in an LED would put out enough light to be visible.

There was a project a while back on Kickstarter that used GITD basically like a remote phosphor for a blue LED, but the LED would only be lit occasionally for a short time in order to charge the GITD. I think it was like two seconds every thirty seconds or something. It was touted as a very-low-energy lighting source. But, with drivers and firmware developed here on BLF, we get much better results without that kind of trickery.

I kinda want the tiny lantern on it’s own. Put that as an add on for the extras packages.

it is very visible. Blue & green LEDs in particular seem to be very efficient with being able to glow and nearly unmeasurable milliamp loads. The resistor is a tiny 1/8 watt, and a very high resistance of 300K for the (2)-CR2032 cells, and i found a 100K works fine on a single CR2032. I have a few other lanterns now using that set up for over a year glowing on a single 2032. Even if the cells lasts only 4 years running, i see these lithium cells in stores here selling 2 for a buck.

Very interesting. You should sell some of those as tiny lanterns.



for sure, I would be a buyer! Amazing.

:question: I guess I don’t see the point of having a separate power source for the soft-glow, low output, additional light when there will already be 4 18650s. Why wouldn’t it make more sense to tap into the existing power source to feed a locator light?

It probably would. Does anduril allow for secondary/locator led? Could it be auxiliaries, just run at extremely low currents?

If i could source them in large numbers i would, but i can’t seem to find many of the hosts online anymore. (i reserved this pic for an upcoming topic for “Micro Lanterns” but heres what they are. These use the hard-to-find remote phosphor, very efficient 5mm LEDs, in a real nice warn white tint which have an very even 360 degree light emittance, (hard to find in any LED design) and modded these tiny lanterns (these lanterns are about the same size as a C-cell battery and can be a keychain) They have two modes, on, and glow mode. I modded them with these unique 5mm LEDs, a micro clicky switch, and a 300K resistor for the glow night light mode, (should run for 5+ years on the two CR2032 coin lithium cells) and a 96 ohm resistor for the on mode, which i tested it to run for about 23 hours of light twice as bright as a large candle, then will run for another 35+ hours at a dimming rate. (the red classic Hurricane lantern one used to be just a pencil sharpener and not even an actual lantern…until i got my lantern-building-fingers on it. :smiley: These tiny lanterns make the LT1 test sample look huge in comparison, to show how tiny these really are.

I am already on the list for one, but I am interested in a second one in “green”, if the price is similar.

Thanks for this awesome project!

Interested in the LT1

Interested!

If such a locator leds is to be used and have to work for years, the operating should bypass the MCU (and thus Anduril) because powering the MCU for controllung it uses way much energy than the led itself. So the led should simply connect between batt+ and batt- with a high value resistor in series, like Den’s coin cell setup, and thus always be on. Using a 100K resistor gives very visible locator light and drains 4 18650 cells in 40 years.