Check out Marine Depot
http://www.marinedepot.com/aquarium_lighting__index.asp

As I understand it you will have to actually replace the lighting fixtures
as the ballasts you have will probably not be able to handle the higher
wattage.

"Pisces" wrote in message
...
I have 2x 48" 40w fluorescent bulbs in my 55gal tank I would like to get
more light without adding 2 more bulbs ( the tank is not broad enough) I
can't find anything more than 40watts. where do you get those 96 watt
bulbs?
Glen