Actually a D1S-sized thrower host with 21700 is exactly what Iāve been contemplating recently.
Or maybe slightly larger.
This one may be the closest so far. 
Interested
I hooe it will be side e-switch.
Single side e-switch with USB charging.
Curious. Waiting for details, specs, etcā¦
Great! Still can leave me on the list. 
Now it only need some good firmware and a good led and driver.
interested!
At least interested to find out more!
Whatever this lights ends up being, please: 1) neutral emitter available, and 2) no glue!
Interested
interested.
Interested
interesting.
Interested
Interested
interested
Interestedā¦one more chance for astrolux
Sure why not!
Yes Iām interested depending on cost and specs.
Interested. Thanks.
Ok, I am interested now pending the full specs, pics, price etcā¦