I'm running RB pendants and Quanta Pro meso blue bars and loving the combo. You may be restricted to certain bulbs in the coming future, but there are plenty out there to choose from. I'm currently using some Chinese bulbs, 14k 250w and they're a little more blue than Hamilton's, but still look good. And yes to your answer, they'll be great for frags! I prefer Quanta bars over all other bars out there, including xho's, Orphek's, Blades, etc...Quantas rock!