The article explores how different types of lighting in office spaces can affect energy consumption and the well-being of occupants. By considering both visual and non-visual lighting requirements, the researchers found that adding non-visual needs can increase energy use by 57%. However, using daylight and higher color temperature lights can help save energy. In fact, 5500 K light can save up to 20% more energy than 4000 K light. This study provides a way to design office lighting that is energy-efficient, promotes a healthy circadian rhythm, and improves overall lighting quality.