The lightning is 10 t5 54 watt, 4 blue, 6 white, HQI are 2 times 250 watt 13000K
http://robertus-reeftanks.nl/pages/28499/Tech_page_100G_tank.html
Achieving a similar lighting with LEDs is possible, I'm just not sold on the long term survival using them. That and ud probably still need some T5 supplementation.