Dimensions and technical data 220-240 V ~ 50 Hz Housing color: white Housing material: UV-resistant ABS plastic Bearing: ball bearing Nominal width: 125 mm Speed levels: 1 Power: 17 WRpm: 2500 Air flow: 155 m³/h Sound pressure Lp-3m: 43 dB(A) Total pressure Pmax.: 60 Pa Protection class: IPX4 Max. ambient temperature: +40°C Cover diameter: 187 mm Pipe socket diameter: 125 mm Pipe socket depth: 77 mm Total depth: 107 mm Weight: 0.7 kg Adjustable run-on time (3-30 min), light sensor: Mode 1 automatic switch-on after the light is switched on & device switches off when the light is switched off after the set run-on time has elapsed; Mode 2 automatic switching on after switching off the light and switching off after the set run-on time has elapsed. Mounting options: ceiling, wall. Installation: directly in the ventilation shaft.