coralife mod?

[fload]

i have the coralife 150x2 MH 96x2 PC set up and i have been getting more and more stonies and i really dont think this is enough light... has anyone ever modded one of these? i would like to replace the 150w with 400w....

http://www.marinedepot.com/md_viewItem.asp?idproduct=ES53506

any suggestions?

[fload]

o and would it be possible to use the same um bulb holder thingy? im sure it would have to be different however when i look online at the 400 double ended set up the sockets look the same as a 150w so i guess im just asking if i could simply change the ballast and bulb....