The keyring would need to be off-centered. I think it would add cost but no self-drain issues (I believe drain could be lower than self-discharge of battery) but I might be wrong about that.
Value?
Full Andruil in a light of this size would be a killer feature by itself.
There’s a honeycomb TIR optics that fits the C01S. Someone here on BLF found it. It is very floody.
My preference would be a different LED. As soon as there’s a Nichia 219C underneath that very same optics, you get a really nice beam.
Sofirn and people working closely together with Sofirn usually ignore my proposals, but in case someone is interested, I can do some comparative beamshots.
I'd personally want a stainless steel or ti 2 mode and none of this trying to be the baddest or brightest . i'd be thinking dqg or atom ,Not a pocket rocket ... just a classy light done right .$20 for SS and $30 for ti. High cri /nice tint ,starts in low but a higher than normal low since it's a 2 mode .
Something with only our name on it ...and not cloned by the maker using their name a month later.
For a light in the $10 range, I’m fine with the small cell, sealed design, Micro USB charging, and twisty operation. It must always start in low- no exceptions.
What I would like to see is:
Neutral/warm high CRI emitter.
Aspheric lens for wide, smooth beam with no hot spot, like the Utorch S1 Mini.
Solid lanyard/key ring attachment point like the ROVYVON A8.
How many I purchase will be based on color choices. Anodize these lights in an assortment of colors and I will buy lots of them. If it only comes in black, I will buy 1 light.
Quantity I would buy: 1 for sure. Many more for presents if the design ends up right.
Suggestions:
Modes: sub-lumen moonlight please, always start in lowest (or at least configurable), no memory.
Switch: don’t care if twisty or tail clicky, but important to not have any self drain (no electronic switch).
Battery: 10180 or 10280, but not AAA size (there are already many great AAA flashlights).
Charging: USB Type-C please. More durable, easier to use and future-proof than Micro USB.
Other: flat bottom able to tail stand, with a solid ring hole in its side that don’t affect tail standing. No magnetic tailcap.
A tail e-switch would be increasing size, cost, complexity, and I don’t see how Anduril adds to what IMHO are the goals of this product.
BearBreeder, Boaz, agent80: A USB-rechargeable 10440 light is a good idea for a different project. Consider starting a proposal.
A 10280 battery is intriguing but really pushing the limits. It would add at least 10mm to the length and probably 10-20g to the weight, doubling it. That would be a significant departure from “tiny”.
It’s great to see so many ideas, though please try to stay strictly focused on the typical use-case for a keychain light. This is why I made a detailed description of what I think is the core goal.
I think the best products are purpose-driven rather than feature-driven.
Although I must admit being a bit spoiled by the Nitecore keychain offerings with over 500 lumens, which makes 100 seem rather low, at least on paper.
I don’t like twisties very much for anything, and especially not for a keychain light, because for that usage scenario it seems best to allow one-handed operation.
4000K sounds perfect, and would be a major attraction in a world of cold tint keychain lights.