I've got the updated Fluval Spec V as well. I tried to find any PAR info about the new light, but was never able to (even Fluval didn't have it). I also have a 20 gallon long that has a Finnex Stingray on it, and the Fluval's light seems much brighter than that one. I've also had a lot more algae on this tank than the 20 long. I think if you get any higher light you'll probably just end up with more algae, but maybe someone else can chime in who've tried a different light.