BLF LT1M - LT1 Mini (link to project)

So will you be doing a Micro and a Mini :slight_smile:

Just had to say that before anyone else.

definitely will be, either a mini or micro, or both. :smiley:

Count me in for 1 pc.

I'm in for 2 item.. Thank you

I have thought that’s applicable to both LT1v2 and LT1 Micro.

It would be useful to make battery-less USB-powered work one of primary use modes.
Why?

  1. LT1 already works great as a night lamp next to my bed but only as long as it has a cell inside - otherwise there’s coil whine and annoying red/green button. I can use it with a cell but would rather avoid the extra wear I put on the cell.
  2. For portable applications I would often prefer a lantern to be as compact and lightweight as possible. And when I have a powerbank with me (which happens almost always when I’m camping) ditching the battery tube would save a lot of bulk.

Regarding coil whine in the LT1, has anyone tried sticking a big capacitor or two in an 18650-sized shell? It might be possible to replicate the cell’s role as an energy buffer in USB-powered operation without needing the full capacity of an actual cell.

great idea and yes please I’m interested

Update: 01/03/2020) i am awaiting for a couple potential hosts bases from Barry & Sofirn shipped out to me a couple weeks back, once i receive them i can work on the design & testing for the micro/Mini LT1.

:+1: I can hardly bear the wait.

This is great. Count me in!

sub’d

Meh. Not for me, I think. Lighter, smaller, dimmer lanterns are plentiful in the marketplace. I am content with the LT1 for its brightness, runtime and feature set.

If I were a backpacker I guess I’d feel differently.

More thoughts:
If the tailcap could be screwed directly into the head (without battery tube), the result would be a nice batteryless lamp. LT1 can be used without tailcap but with exposed contacts doesn’t feel like a product but rather like a hack. Reversing the threads on the head and adding a tailcap would make it feel better in such use.

Great that they are helping you to get this Mini moving along.
After all the LT1’s they sold you must be on their “Good” list :slight_smile:

Thanks for doing all this and Thanks to all the others who worked on the LT1.

Your idea seems rational, but it’s probably easier to just stick an old 18650 in there; one that isn’t good for much else :wink: .

If someone did try the capacitor in a dummy shell, I recommend putting a resistor in series with it to limit charge/discharge current to some reasonable value. Even a low value like 10-ohm should be fine, as that’s only a ~400mA inrush and seems likely to keep the charging circuit happy. 100-ohm also seems reasonable to me, but even higher may work.

Count me in for 1 please.

In for at least 3 probably 4 if the design stays compact enough for hiking.

I am in for 1

but seriously… why not just pack a diffusor for your flashlight. this is what I have done always.

to stop the beam and reflect it back, I just use some reflective stuff as a “hat” for the diffusor.

I have a silicone diffusor for my D4Sv2… pack some Alu foil around or in it… and voila. Anduril Lantern.

If you want a 21700 host, the EC01 from Astrolux might be good idea… needs a nicer emitter of course. The itself sells as low as 20$ and as usb c charging and Anduril

Or look at the Lumintop edc18… magnetic base, deep carry clip, sideswitch 4000k sst20, Anduril with candle and sunset mode and it comes with a diffusor. You probably just need a bigger diffusor and a way to hang that light straight. maybe a magnetic adapter. usb i missing though

or the wurkkos wk30… I heard it is built by sofirn anyway. usb charge. just needs a diffusor and Anduril on it.

This diffuser might be an option. Being wider at the top might be a problem, but it seems like they were doing that to get more light going downward.
Opening is listed as 33mm or 1.3”. They sell it for $12.50.

Their lantern basically a flashlight with a diffuser on it. The tint looks kind of blue.
They use a flashlight with a 26650 battery, No idea who is manufacturing it. Someone here would probably know.
The product name is called Lantern, which seems like a really bad idea for a name.

Sueli428, That is a pretty neat lantern, with bike mount and all.