Howdy Ptmarkg, I'm not using LEDs, but CFLs and I run full time a 50/50 mix of 2700° K and 5000° K bulbs. The 2700° K bulbs are considered, by some, to be fro the veg stage and the 5000° K for the bloom stage (or is it the other way around? lol). Anyway, I run them both during the entire grow and have had no real problems with them. The more light, the better. ( well, until One toasts them! LOL)
Good luck with Your growing.