I received my Umnitza Ice VXX and installed them today.
I tought they would be one 10W LED, but in fact it was a 2X 5W arrangement. I don't know if all the 10W on the market are the same though.
They are may be a bit brighter than the stock ones, but not a lot. I think that the limiting factor is the fiber optic arrangement on our trucks.
Pics 2-5 = Ice VXX vs stock:
Pic 6 = 2X Ice VXX
(pictures taken with engine running for higher voltage)