Security lighting is an important part of the home security plan. You should have lights that activate with movement in all areas of your property that are very dark, besides scaring off intruders, they will light the way when you go out at night.
Very often intruders will just leave when the lights come on. Some will remain in the shadows to see if they go off. But when they comes back on they may leave.
Security lights shoud be mounted high on exterior walls in order to deter tampering.
Solar charging of batteries saves money, and provides backup power.