thay are orbit extreme48 inch the disscription says revolutionary 130W compact fluorescent lamps rival metalhalide light
2 sunpaq dual day light (6,700k/10,000k) and
2 dual actinic(420nm and460nm)bulbs
a total 520watts also has dual fans

this is all a knoew about them i was hoping some one kow more about them
there are the most exspensve com pac fluorescent around and most watts for the money im doing a reef with corals and anenamies will let you all know how they work or just follow my thread in the ....diy.. 55 from the start .... there are pics of them there...