not sure how much info I can give so I will keep it to light, Pio mods please delete this if I cannot say this much (even though all the info is in the parts sheet on your site:)
Yes, there are 8 led's total around the platter, a rich and white in each corner. If one led goes, the one next to it, right or left, will go to so you either have both out on top, or both out on bottom, they must be ran in series I guess