Do all Four Seasons hotels have ultraviolet lights?

There is ultraviolet light, and the hotel design requires extremely high indoor lighting environment. Professional technical requirements such as illumination, color temperature, glare, heat dissipation, infrared and ultraviolet light should be considered. As a comprehensive commercial service space integrating food, accommodation and entertainment, a hotel can't meet the customer's needs only by a few simple main lights, so a good hotel lighting design becomes an important factor of customer experience.