Thanks for the feedback, Austin! These are very good points and I feel embarassed that I didn't make them clearer (and in the case of 2. hadn't thought through on it).
Having done some low-stakes iteration before writing anything about it publicly would have been a wiser decision.
1. I have not, and I should've at the least made that clear in the proposal, or waited until I'd built one and then posted it. This was my biggest point of hesitance in posting this, and in retrospect I should've just gotten some hands-on experience first.
2. Good point. I hadn't considered the pre-selling with discount.
1. My model here is that a surprising number of people have built lumenators themselves, resulting in a sort-of-shitty product at some significant time investment (a friend of mine spent ~5 hours researching the right materials before buying), and extrapolating from how many people get filtered out by trivial inconveniences
2. The "Tesla Roadster" strategy is kind of hindered by the existence of Coelux and InnerScene, which sell expensive lumenator-like lamps. Their stuff is expensive enough that they even don't list it in their catalogue or on their website, but this website says it costs ~$40k and someone from InnerScene also states that their product is about as expensive as the Coelux product, and their lamps are a bit too dim (I've seen up to 6k lumen), so it could be possible to slot below them on the price scale.
3. Okay, good to know.
4. I guess I just don't feel motivated to do software, outside of a dayjob? And there's no thing I want to make that could also generate profit?
1. I haven't run any side projects that generate profit before. (I have run a number of side projects, some of which have involved making physical things).
5. I would really like to have a cofounder. I'm in contact with two people, but think both are unlikely (<25%) to join in. Given how much I'd like to have a cofounder I should invest much more work in finding someone.
Wow, that's a strong vote of confidence! Both 1. and 2. look like I can just do them in <2 weeks at low cost, so I'll do them and report back.