Hi,
I agree, IceCap ballasts will run almost any bulb brighter. To what extent, I am not certain. I have seen claims of 30% brighter, but no hard data to back that up.
As I mentioned, as long as heat is not a major issue, the benefit is nill. And the extra money you save in electricity seems to be minor. I checked other posts on the subject of electronic versus magnetic and there seems to be an overwhelming majority of reefers who think and report the electical saving are insubstantial.
I would have to agree that the electronic ballasts (especially IceCaps) are superior in heat generation, light output, and energy efficiency.
I only suggest that if you are not lighting a very deep tank (>30"), and heat is not an issue, then save the money (~$250) and buy the PFO ballast. You can get a double PFO 250 watt iwasaki ballast with bulbs at marine depot for $286. The same setup with the icecap ballasts is $550.
Draft Pick- I am not sure what PFO stands for, but you can check them out at
www.marinedepot.com once the sight comes back online. You can type in
http://206.117.191.215/ to get to the sight right now.
Good luck!