Data Centers | Design Guidelines | Informative Data Center Design: Recommended 3-Level Lighting Protocol Based on Human Occupancy Proper lighting is essential in data center environments—not only for visibility but also for security, energy efficiency, and operational safety. A tiered lighting strategy ensures the right illumination is used based on real-time occupancy. Level 1: Minimal Lighting for Unoccupied Spaces Used when no personnel are scheduled in the data center. Lighting should be sufficient only for surveillance cameras to function effectively. Cameras must be rated for low-light operation to maintain visibility during this mode. Level 2: Intermediate Lighting via Motion Detection Triggered automatically by motion sensors when entry or movement is detected. Lighting increases to a level that enables clear visual identification via cameras. This level can replace the need for manual switches, enhancing security and energy efficiency. Level 3: Full Illumination for Occupied Zones Activated in zones where personnel are actively working. Recommended lighting levels: 200 lux (20 foot-candles) vertically(Measured 1 meter above finished floor between cabinets) 500 lux (50 foot-candles) horizontally Additional Lighting Recommendations Use anti-glare fixtures to prevent reflection on equipment displays. Install occupancy sensors near exits for automated lighting control. If using fluorescent fixtures, specify models with low-RF ballasts to avoid interference. Place portable, battery-powered lanterns in all computer rooms as emergency lighting backup. A structured lighting protocol not only supports operational clarity and safety but also optimizes energy usage and enhances physical security. Consider integrating this three-tiered system as part of your broader data center design strategy.