Independent research has shown that there is a clear and positive relation between exposing patients to sufficient light during the day and their health and wellbeing. LED fixtures deliver almost full spectrum light, compared to fluorescents which deliver only a small part of the light spectrum. Partial spectrum lighting combined with an indoor environment keeps personnel and patients from receiving the light their bodies need to be fully awake or to restfully sleep. LED light is not only more visually appealing but also can alleviate this problem by giving off light that is closer to daylight than fluorescent light and keep those who are indoors all day on their circadian rhythm, helping them stay awake or restfully sleep. It has been proven that light can improve parameters like sleep, mood, depression and length of stay in a hospital environment. Ambience and personalization can be particularly relevant in diagnostic areas, waiting areas, patient rooms and entrance lobbies/receptions since lighting provides a unique way to transform our surroundings and create appealing, emotionally uplifting atmospheres.