If you start an interest list sign up in in for 2 (at least!)
If it’s anything remotely close to djozz’s lantern mod from the first page I’m in for two.
I am looking to find a good host to build a prototype to start from for a mini-LT1 ( or Micro-LT1) design.
So will you be doing a Micro and a Mini 
Just had to say that before anyone else.
definitely will be, either a mini or micro, or both. 
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?
- 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.
- 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.
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
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 
.
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.