Smart to run at 80%.
Heard good things about the ultras.
They should be good for the DesPlaines River since it's pretty clear.
If you get out on very muddy water like the Fox Riveroften, you mayhave better luck withthe brighter bulbs to penetrate as much as possible.

Also, since you're starting from scratch with your first night rig, and if your genny has two outputs, plan to divide up the lights equally between the two circuits.