Why is good lighting important for perimeter security?

• A. Increases visibility, deters criminals, reduces opportunities to approach unseen.
• B. Decreases energy consumption for lighting systems.
• C. Increases the number of cameras automatically.
• D. Improves indoor air quality.

Answer: (A)

Perimeter lighting is most effective because it improves visibility across the boundary and acts as a deterrent. When an area is well lit, security personnel and surveillance cameras can clearly observe activity, recognize potential threats, and respond quickly to unusual behavior. Uniform, well-designed illumination reduces shadows and hiding spots, so someone trying to approach unseen has a much harder time. The result is both a higher likelihood of detection and a greater perceived risk for would-be intruders, which is the essence of good perimeter security lighting. Lighting doesn’t inherently save energy in this context, doesn’t automatically increase the number of cameras, and doesn’t affect indoor air quality, so those considerations aren’t the primary security benefit.