Standard model for simple switching on/off from a separate switch, e.g. light switch or spur unit. 2 wire connection (live and neutral). This model does NOT have a timer over-run. Mains voltage 220 - 240V AC 50Hz. Power consumption: 19 watts. Extraction rate: 22 litres per second, 80 cubic meters per hour. Sound output 39dB(A) @ 30m. Can be ceiling or wall mounted. IPX4 rated. Dimensions: See picture 2.