Billboards typically use a fixture design that provides poor directional control of the illumination. Much of the light produced by these fixtures misses the sign and beams directly into the sky. The power lines are located midway between the sign and the camera, demonstrating poor lateral directional control as well.

This sign owner seems to realize that downward aimed illumination avoids the waste of light directed into the sky.
 
 

This post-top mounted fixture yields inherently poor visibility. The post blocks illumination near its base, where it is most needed because of the fixture's unshielded, glaring light source.
 
 

The combination of "veiling luminance" created by a bright, unshielded light source in our field of view, and the ring of shadow created by the post make this pedestrian very difficult to see. Ironically such fixtures are often called "pedestrian lights."
 
 

This school's neighbors won't have to pull the blinds at night to avoid glare. Tax money is saved by well-directed illumination.
 
 

The lighting at this fire station is low glare as well as very attractive.
 
 

This is the proper way to illuminate building entryways. Ground base floodlights are often used, but they are blinding when we exit a building or peer out through a window.
 
 

This fixture is attractive as well as non-glaring.