Up where I hunt, lights are imperative.
   I used to run a set of 55 watt halogen floods .  they were big and bright and right on the very tip of the bow,  so they only cast light on the scene ahead.  I got them at west marine (they have an online store)  I think they were about 5" by 4".   They were great.  I think they cost me about $75 bucks.
My new boat has smaller  aluminum frames around the lights,  and they will not allow the same lights to fit.  I run the same wattage,  but the lights are only about 4" by 2 and 3/4"  and they are piddly in comparison.   
   In addition to that,  I have a 15million candlepower light that the bowman runs off the bow, and I am running a 120 lumens (15 watt) halogen  mtn bike light that I hold in my teeth so if I turn my head,  I can light up the area where I am looking.   The only problem is that if I have to bark out orders or ask a question, no one can understand me and the light falls out of the grip I've got on it with my teeth.
I am looking at a 1400 lumen light made by Nite rider.   They specialize in Bike lights and the one I have has lasted for 12 years,    1400 lumens is brighter than a halogen Hi Beam,  it is portable and durable and so bright, that people think it is a train.
It is $600,  but where I run the Duckbomber,  it might save our lives, so I figure it is money well spent.
It would be different if I hunted a place that didn't change each day,   but the Columbia River in the last 40 miles or so can get all crazy in the winter.   I also wear a spot satellite tracker, run a GPS,  and leave a float plan in the truck.