My driveway is 9ft with a stone wall, 1ft high on one side. This way is high risk for hitting when backing up, especially at night or in rain storm, so installed one of these two flood lights. It is bright and the risk of hitting wall, greatly reduced. My only issue was how short the wires were. My outdoor electric box had to go at the end of the light opposite to where the wires come out and barely made it. I'm also wondering how long it will last and see way to change bulbs. What a shame if I have to change the whole set up.