Well first off, that’s a Kickstarter which means you can’t have them yet, if ever. Kickstarter is a crowd-sourced venture capital system. It’s where you go when you want to make something and need startup money, but regular venture capital firms won’t give you any because they think your idea will fail. Nothing wrong with backing Kickstarter ventures as long as you recognize that you may never get the product, or the product may never work right, and you’re OK with losing your money.
You need to be fully aware that there have been a number of scams on Kickstarter in which the product was always intended to be vaporware, but the guy running the campaign got to pocket the money. You also need to be fully aware that there have been even more campaigns on kickstarter run by people who have no idea how to run a business, and who take people’s money with every intention of making a product and then drive themselves right into the ground through incompetence. Either way, the end result is the same - everyone who invested loses their money. Google “tiko 3d printer” some time for a good object lesson in the latter.
Second, I find it underimpressive that they advertise 4 colors, and then show you varying shades of yellow and count alternating between 2 of the shades as a unique color. They’re obviously fluffing up their presentation in the hopes of hooking someone who doesn’t understand what color is.
There are normal LED replacement bulbs for halogens. I’ve considered trying them myself - there’s no particular reason why they couldn’t work as long as the manufacturer is careful to make sure they have the same light spread pattern as the original halogen bulb so that the headlight reflector works properly.
So, there might be an LED out there that would work for you, but in my opinion the link you posted isn’t it.