50" or 52" light bars your thoughts
If your asking because your worried what others think-who cares-to each their own, it's your rig. Now as far as some things to think about, here's some.
-Before you buy a mount, decide on if you want it to go above the roof line or even with it, different companies have different mounts.
-If you buy a high end light (mines an $1800 competition Rigid bar) it will come with rubber fin bumpers (Resonance Dampers) that when installed, make NO wind noise.
-(Note) there's two ways to make them not whistle, one is to buy Rigid's Resonance Dampers which fit most fin'd lights or run two strips (upper fin and lower fin) of adhesive back'd weather stripping from an auto parts store or home improvement store.
-If you buy a cheap one they tend to get water in them so run a thin bead of clear silicon over every part that meets another part of the bar.
-As for use, I keep mine covered usually (don't want any rocks to kick up and break it) unless we're wheeling, camping or hunting. What I've noticed is while driving to hunt the light doesn't really scare the deer off, must be the type of light.
-Here's mine, example of the roof line mounts.