Install floodlights for alleyways, rear and front entrances and parking lots. Lighting should illuminate the roof of your building. Use lighting fixtures with a photoelectric cell or timer to ensure that lighting will be on when you need it. Locate light fixtures at the best height and location to maximize illumination, avoid blind spots and reduce shadows that provide hiding places for burglars. Install vandal-resistant covers over bulbs and locate fixtures to prevent easy access and to reduce the chance of intentional breakage.
Burglars prefer darkness.
Maintain interior lighting at a level that allows clear visibility into buildings to allow for law enforcement and civilian surveillance. Be sure that lights do not shine into the eyes of people passing on the street, motorists or police officers on patrol. Inspect your lights regularly. Replace burned-out or broken lights immediately. The building where you conduct your business is your second line of defense.