working mode: after the induction switch is connected, in the time delay time, if there is a human activity, the switch continue to connect, until the people leave after the delay is closed. intelligent delay: switch in the detection of the human body after each activity automatically add a delay time, and the last activity as the starting point of the delay time. intelligent induction: when people come, the lighting device automatically opens; when people leave, the lighting device automatically closes. Material:Plastic,Metal, Manufacturer: Akfldms