Welcome to Theben: The experts for KNX, time switches, presence, and motion detectors. Behind each of our solutions is the idea of using energy only when it is truly needed: whether it's automatic light control with presence detectors, motion detectors, or LED spotlights, light control with DALI components, dimmers, and staircase light timers, or climate control with KNX actuators, CO2 sensors, and room thermostats.