I never really looked at what the flora garden system spec'd out in comparison to others in today's market & technology. I have had my shelves/light for a few years so things have changed.
Guess they are T12's and the bulb mfg is "Verilux® full-spectrum fluorescent lights as they have a high color-rendering index (94.5) and a color temperature of 6280 Kelvin, making them the closest match to natural sunlight of any fluorescent lights. Rated at 26,000 hours (which is about 10 years for the average gardener)."