I picked up a 50" 10w single row bar straight from the manufacturer in China and it's stupid bright. Here it is on my 96' plow Bronco - I pointed it down, its too bright...
The 50" bars are the assless chaps - unless you are running baja they are overkill and out of place. I use my 50" bar on magnets on the bottom side of the hood pointed down for working at night on engine bays - but I'm a fan of the 20" and down variety as they don't look out of place and pump out lots of light.
Hell - my 7" bar I've had for 5+ years is more than I need for 4x4...