Brightness Sensor/Controller with constant level light intensity. Ceiling installation in 35mm Kaiser installation box. Brightness Sensor with constant level light intensity to control up to 3 light rows. Brightness value can be read out. Orientation light (Brightness and time adjustable). Day/night mode with separate settings. 35mm Kaiser installation box included (Installation depth 45mm). Dimensions (W x H x D): 43mm x 43mm x 30mm. Integrated bus coupling unit. 3 years warranty.