BLF LT1M - LT1 Mini (link to project)

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Chinaheart
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I'm in for 2 item..  Thank you

Agro
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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.

Phlogiston
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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.

woodyt
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great idea and yes please I’m interested

DBSAR
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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.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

MtnDon
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Thumbs Up I can hardly bear the wait.
lotrbfme
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This is great. Count me in!

JaredM
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sub’d

Rexlion
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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.

Agro
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Agro wrote:
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.


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.
Stittville Ed
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DBSAR wrote:
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.

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 Smile

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

leftdisconnected
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Phlogiston wrote:
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.

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.

RobAllen

specialk
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Count me in for 1 please.

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

lightboks
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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.

sueli428
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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.
https://lanterngear.com/collections/accessories/products/lantern-diffuser

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.

https://lanterngear.com/collections/all-lanterns/products/lantern-black
https://www.youtube.com/watch?v=JdUGej9jx_4&feature=emb_title

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

Nite Shadow
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Sub’d. Probably in for at least one.

California_Prepper
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sueli428 wrote:
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.
https://lanterngear.com/collections/accessories/products/lantern-diffuser

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.

https://lanterngear.com/collections/all-lanterns/products/lantern-black
https://www.youtube.com/watch?v=JdUGej9jx_4&feature=emb_title

I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

sueli428
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California_Prepper wrote:
I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

Yep. It does look like they put some thought into the diffuser light pattern, so that might have some utility. I do like the idea of the 26650 platform, but I wont be buying it.

It is probably manufactured for cheap in china and marked way up.
DBSAR
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California_Prepper wrote:

I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

That was one of the top goals of designing the LT1, is the CRI and tint. 99 % of consumer LED lanterns on the market all have had horrible bluish tint, low CRI, low run times on max output, and dozens of other flaws they have.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

California_Prepper
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DBSAR wrote:
California_Prepper wrote:

I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

That was one of the top goals of designing the LT1, is the CRI and tint. 99 % of consumer LED lanterns on the market all have had horrible bluish tint, low CRI, low run times on max output, and dozens of other flaws they have.

I completely agree. I’m hoping in future models the lt1 will have a powerbank. With that feature added, it becomes about perfect in my opinion.

Kennyboy
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Interested

DBSAR
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California_Prepper wrote:
DBSAR wrote:
California_Prepper wrote:

I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

That was one of the top goals of designing the LT1, is the CRI and tint. 99 % of consumer LED lanterns on the market all have had horrible bluish tint, low CRI, low run times on max output, and dozens of other flaws they have.

I completely agree. I’m hoping in future models the lt1 will have a powerbank. With that feature added, it becomes about perfect in my opinion.

That option is planned & reserved for a LT1-deluxe, (or named LT2 )

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

California_Prepper
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DBSAR wrote:
California_Prepper wrote:
DBSAR wrote:
California_Prepper wrote:

I really like the powerbank feature. Other than that it seems like just a flashlight with a diffuser. The blue tint is pretty bad, and I don’t see it being able to run for hours without overheating. Lose the power bank and you can find better lights and diffusers for quite a bit less $$$

That was one of the top goals of designing the LT1, is the CRI and tint. 99 % of consumer LED lanterns on the market all have had horrible bluish tint, low CRI, low run times on max output, and dozens of other flaws they have.

I completely agree. I’m hoping in future models the lt1 will have a powerbank. With that feature added, it becomes about perfect in my opinion.

That option is planned & reserved for a LT1-deluxe, (or named LT2 )

And when is the LT2 coming out?

woodyt
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I like the idea of a power bank too.

DBSAR
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California_Prepper wrote:

And when is the LT2 coming out?

unknown at this time, as we will be focusing on the smaller LT1 mini/micro for the backpacker/mountaineer category, (and LT1 accessory kit) first.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

adirondackdestroyer
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I’m down for 2 Lt1 micros and one LT1 accessory kit!

Agro
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DBSAR wrote:
California_Prepper wrote:

And when is the LT2 coming out?

unknown at this time, as we will be focusing on the smaller LT1 mini/micro for the backpacker/mountaineer category, (and LT1 accessory kit) first.


Any chance that this one will include a powerbank already?
Chinaheart
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I'm very interested

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