Do not underestimate 6 dollar. There’s 2 dollar lights out there with more material and way more complex build (like a sk68 clone), and there is a profit on them too. I think with a light this simple, for 6 dollar you can get excellent threads (and robustness, and ano, and driver etc.). Still the momentary-on will probably work fine this way.
Slowtechstef - for the sake of avoiding too much confusion about interest and who is on any lists, perhaps editing the first post to note the interest list is on hold while details get settled on the latest development would be wise. Your call though.
Another nice characteristic of the E01 is its excellent regulation for most of the battery life and efficiency. At this price, I consider it a desirable trait rather than a necessity, but thought I’d mention it in case the point is open for discussion.
I have done some testing with these emitters, including overdrive testing. If any of it might be useful, I’m happy to share.
These emitters should be safe to drive harder than 20mA. Standard rating conditions are 20mA, and Yuji’s official spec indicates they are good for 30mA continuous. I measured an output peak at 90mA.
I haven’t tried to establish life expectancy at some intermediate drive level, but probably could set something up if it would be helpful.
If they are built to be a true E01 rival with potting, good regulation, and battery vampire qualities, I’ll commit to eight if it stays in the neighborhood of the $6 price point mentioned. Not just going to hoard them for myself, I would give some away.
Yeah, that did not come out right. I have 4 AAA twisties, and when I carried them my MO was to squeeze the head to get the light to come on and go through modes even. Maratac copper, brass Lumintop worm, Manker Boney, and Thrunite Ti3. The only one that does not work well that way is the Ti3, it just needs to be twisted. Just saying that there are options for momentary on without twisting.