I have digitally ballasted t5's, they rock even more, the lumens were rated above 2280 per bulb, its a smart ballast and runs two 24inch 22watt t5's at the same time so you can have one red and one blue flourescent for a mixed spectrum. Buy the bulbs on the internet, grolux bulbs seemed good but found better ones from aquarium stores and the internet. Over here the freshwater daylight flourescent for coldwater fish is perfect for veg and spot on the veg kelvin spectrum and the tropical fish bulb is spot on the flowering light spectrum.
I rucking love flourescents!