12 CORE Principles for Healthy Building Design
CORE Principle 06
Circadian & Healthy Lighting Systems
Lighting affects much more than our ability to see.
Natural daylight and artificial lighting influence the visual environment, comfort, sleep-wake patterns, and how interior spaces are experienced throughout the day.
SENERGY360 coordinates lighting with the architecture, electrical system, interior design, glazing, shading, and automation strategy.

SENERGY360 helps guide:
- Natural daylight
- Window and shading coordination
- Circadian-responsive lighting
- Tunable lighting systems
- Low-flicker fixtures and drivers
- Spectrum and color-temperature considerations
- Ambient, task, accent, and indirect lighting
- Nighttime navigation lighting
- Glare control
- Lighting controls and automation
- Exterior light-pollution reduction
Healthy lighting should work with the natural day-night cycle rather than fight against it.
One of 12: Circadian & Healthy Lighting Systems
Every principle is stronger when the other eleven are in the room.
SENERGY360 coordinates all twelve from early design through final verification.

