Reefsun - Single Bulb (5500K)

[robzilla]

hi, looking for lighting for my 44h hexagon tank.
any thoughts on this:
http://www.jlaquatics.com/cgi-bin/shopping/jalstore.cgi?user_action=detail&catalogno=zhm-hrs1

am i going to need to supplement it with other lighting also?
what size bulb should i use? (175w/250w 10000k??)

thanks
rob