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

ToyKeeper · 2019-05-14T19:15:29.000Z

There are already a few automatic blinky modes…

Battery check
Beacon with adjustable brightness and timing
Bike flasher with adjustable brightness
Party strobe with adjustable timing
Tactical strobe with adjustable timing
Lightning

… and a manual blinky: momentary with adjustable brightness.

… and some not-so-blinky extras like candle mode and sunset.

… and I’m hoping to make all strobes work as momentary sometime soon, for light painters.

Does it really need a second beacon mode?

DBSAR · 2019-05-14T19:21:58.000Z

ToyKeeper:

Does it really need a second beacon mode?

Probably not, or just make the one there a double 50ms flash, or a single 100ms flash and 3 or 4 second delay between them.

Hoosh · 2019-05-14T19:35:27.000Z

DBSAR:

Hoosh:

This.

Viewing the prototype in the video - the size of the top/head is perfect. No offense meant, but PLEASE, let’s not now try to start redesigning this light because of personal hang ups. :person_facepalming:

Don’t worry, i am leaving it as this size and design. its just some minor adjustments & changes/refinements as listed above in post # 4441

I did just read this post… Is there any more evidence needed to see that one needs to read further into the thread before posting.

contactcr · 2019-05-14T19:41:58.000Z

If people want it smaller how about a 4x 18350 tube?

ossifrage · 2019-05-14T19:47:39.000Z

ToyKeeper:

There are already a few automatic blinky modes…

Battery check

Beacon with adjustable brightness and timing

Bike flasher with adjustable brightness

Party strobe with adjustable timing

Tactical strobe with adjustable timing

Lightning

… and a manual blinky: momentary with adjustable brightness.

… and some not-so-blinky extras like candle mode and sunset.

… and I’m hoping to make all strobes work as momentary sometime soon, for light painters.

Does it really need a second beacon mode?

I took a look at anduril.c. It looks simple for someone with a specific need to adjust the pattern and timing of the beacon, so I’d suggest the default is the most common use case (if we would know what that is?)

DBSAR · 2019-05-14T19:56:02.000Z

contactcr:

If people want it smaller how about a 4x 18350 tube? :innocent:

Actually i like that idea… :+1:

RobertB · 2019-05-14T20:02:34.000Z

DBSAR:

Hoosh:

This.

Viewing the prototype in the video - the size of the top/head is perfect. No offense meant, but PLEASE, let’s not now try to start redesigning this light because of personal hang ups. :person_facepalming:

Don’t worry, i am leaving it as this size and design. its just some minor adjustments & changes/refinements as listed above in post # 4441

Make sure they know you don’t want a clear lens as depicted in the drawing, rather a slightly less opaque. If it were up to me, I’d say leave as is. The Fenix CL30 is similar opacity and puts out a huge amount of light for a lantern. Almost too much on high for camping purposes

Nicolaas · 2019-05-14T20:24:09.000Z

ToyKeeper:

There are already a few automatic blinky modes…

Battery check

Beacon with adjustable brightness and timing

Bike flasher with adjustable brightness

Party strobe with adjustable timing

Tactical strobe with adjustable timing

Lightning

… and a manual blinky: momentary with adjustable brightness.

… and some not-so-blinky extras like candle mode and sunset.

… and I’m hoping to make all strobes work as momentary sometime soon, for light painters.

Does it really need a second beacon mode?

Does a camping lantern need any kind of blinky modes?
Tactical camping??
Bike flasher???

NW, preferably WW from 1 (one) to a few hundres lumens is all I need.

Cheers,
Nico

apt323 · 2019-05-14T21:00:14.000Z

DBSAR:

contactcr:

If people want it smaller how about a 4x 18350 tube? :innocent:

Actually i like that idea… :+1:

Me TOO

DavidEF · 2019-05-14T21:05:04.000Z

apt323:

DBSAR:

contactcr:

If people want it smaller how about a 4x 18350 tube? :innocent:

Actually i like that idea… :+1:

Me TOO

Me Three!

Madtoffel · 2019-05-14T21:17:17.000Z

Yes, a 18350 battery tube would definitly look … interesting.

But a 21700 battery tube would actally be usefull. It would give you a significantly larger capacity and therefore runtime (about 40% more with 5000mAh batteries) while being not much bigger and heavier that the 18650 variant (which already has great runtimes).

DavidEF · 2019-05-14T21:19:13.000Z

Madtoffel:

Yes, a 18350 battery tube would definitly look … interesting.

But a 21700 battery tube would actally be usefull. It would give you a significantly larger capacity and therefore runtime (about 40% more with 5000mAh batteries) while being not much bigger and heavier that the 18650 variant (which already has great runtimes).

…but would require a re-design of the light. A 18350 battery tube would not.

DBSAR · 2019-05-14T21:23:43.000Z

Madtoffel:

Yes, a 18350 battery tube would definitly look … interesting.

But a 21700 battery tube would actally be usefull. It would give you a significantly larger capacity and therefore runtime (about 40% more with 5000mAh batteries) while being not much bigger and heavier that the 18650 variant (which already has great runtimes).

If four 21700 cells would fit in the current lantern head base (near the driver) would be great for a larger capacity addition, ( but its not possible to fit four of them in a body tube that will fit inside the current threaded lantern section, ( as its the same as the Q8 head thread size) the only option there would be a battery tube with an extension adapter, which would make the lantern quite a bit taller, ( probably add roughly 35 to 40 mm to the height as the batteries would have to be an outside section.

ToyKeeper · 2019-05-14T21:28:11.000Z

Madtoffel:

a 21700 battery tube

That has been considered in detail. In the lantern, here’s how it works out:

4x18650: ~14000 mAh capacity
3x21700: ~15000 mAh capacity, slightly longer tube, less common cell type

It’s not a clear win. Giving it significantly larger capacity would mean making the light itself significantly larger… and does anyone even sell button-top 21700 cells?

Tally-ho · 2019-05-14T21:32:24.000Z

With a 18350 tube, the LT1 would roughly look like this :

DBSAR · 2019-05-14T21:32:53.000Z

ToyKeeper:

Madtoffel:

a 21700 battery tube

That has been considered in detail. In the lantern, here’s how it works out:

4x18650: ~14000 mAh capacity

3x21700: ~15000 mAh capacity, slightly longer tube, less common cell type

It’s not a clear win. Giving it significantly larger capacity would mean making the light itself significantly larger… and does anyone even sell button-top 21700 cells?

Exactly, and why we stuck with the 18650 format size the same as the Q8.

contactcr · 2019-05-14T21:39:04.000Z

Can we please modify the light to accept a 26650 at a 45 degree angle? With the dead space please include a matches, flint rocks, paracord, and some tiny scissors.

Melez · 2019-05-14T21:44:04.000Z

Put me down for 1x lantern, if it isn’t too late. This looks great so far!

Tally-ho · 2019-05-14T21:55:49.000Z

@contactcr
Pretty sure that a 26650 will fit a 18350 tube with dead space left if you hammer it inside, and you could also use the inner space of the globe as a water tank.

PocketSammich · 2019-05-14T21:50:28.000Z

Nicolaas:

Does a camping lantern need any kind of blinky modes?
Tactical camping??
Bike flasher???

NW, preferably WW from 1 (one) to a few hundres lumens is all I need.

Cheers,
Nico

No tactical camping, but I think candle mode in a tent would make a great substitute for a campfire on a rainy night.