So I started a complete thread here pretty much outlining my adventure into automotive 12V LED driving lights and got over 500 views but very little real interest. I personally doubt its because of the voltage. Realistically, very few people pick a voltage - they just buy a light and get stuck with whatever voltage battery the manufacturer decided to use.
And I doubt it was because of lack of results or limited runtimes or too large a size because the output quality, quantity and runtimes I got pretty much embarrased any other system I've tried - and I work in the bicycle industry.
Nope! I personally think that people are just too interested in buying 1,300 lumen flShlights from China for $20 to be anywhere near interested in anything that costs over $100, regardless of how well it works or how long it lasts.