Going back to the plasma ram as an example, when I last looked it was getting on to double the cost of ordinary ram (at least in smaller capacities), and I had to question seriously if I wanted to pay that for some lighting. I hope LEDs are simpler and cheaper to implement.
On that note, something to research but are there limits to voltage and power taken by modules? LEDs have forward voltages of 2V upwards, so can they get that directly or would they have to voltage convert? If the latter, I have to then start wondering what current limits there may be. On the plus side, LEDs don't take that much power regardless. At least, not to produce a glow. We're not trying to light an entire case with these I hope.