Indeed, it is a lot of light, but a lot of light is lost since the tank is so small, and i have it hanging about 18 inches high over the tank instead of i think the norm which is 10-12 inches. I also use the excess light to grow an UG farm on both sides of the tank:
and thanks Blue_Alien, and Reginald2, Yeah I didnt either, and i never found any pictures of the flowers online, so I thought I would share. They are VERY tiny, maybe 1-2mm across. pretty cool looking.