1. Morning & Daytime (Good for Alertness and Productivity ✅)
• A melanopic lux of 360 is beneficial during the day (especially in the morning) because it helps:
✅ Boost alertness and energy.
✅ Regulate the body clock (circadian rhythm).
✅ Improve focus and productivity in workplaces and schools.
✅ Reduce drowsiness in hospitals and elderly care facilities.
• The WELL Building Standard recommends at least 250 melanopic lux during the daytime, so 360 melanopic lux is ideal for daytime environments.
2. Evening & Night (Bad for Sleep and Relaxation ❌)
• If 360 melanopic lux is present in the evening or at night, it can be harmful because it:
❌ Suppresses melatonin (the sleep hormone), making it harder to fall asleep.
❌ Disrupts the circadian rhythm, leading to poor sleep quality.
❌ Increases the risk of long-term health issues like metabolic disorders.
• At night, the goal is to reduce melanopic lux to below 50 (ideally around 10-20 melanopic lux) by using:
• Warmer, dim lighting (e.g., 2700K or lower).
• Reduced blue light exposure (screen filters, warm LEDs).
• Indirect lighting to lower intensity.
Verdict:
• 360 melanopic lux is good for daytime but bad for nighttime.
• If you are designing a space, consider dynamic lighting that adjusts melanopic lux based on time of day.