The second group of lights, over the students, stays just bright enough to allow the students to see their desks clearly and take notes easily. When the class is over and the room empties for lunch, dual technology occupancy sensors register the vacancy and turn off all the lights in the room. When the class files back in, the lights automatically return. Meanwhile, a small daylight sensor measures the amount of sunlight available in the room and dims the lights to take advantage of it. The lights closest to the window, where the daylight is most intense, are the most dimmed; the lights on the far wall are adjusted less. The result is an even illumination throughout the learning environment. There is no flickering. There are no too-bright or too-dark spots. And the washed-out blue pallor that older-generation fluorescent lighting is known for is gone. In its place is a combination of daylight and well-designed overhead light and controls proven to enhance students’ attention spans, motivation, and attitudes.