Swing application: one-way inswing or outswing open, single leaf and double leaf standard doors Voltage: 110-220 VAC +/-10% Motor: DC 24V brushless motor Power Consumption: 50W Opening Time: 3-7 sec. @ 90 degrees Hold Open Time: 1-30 sec. Adjustable Max. Door Frame Depth:200mm / 7.87″(the data is only applicable to work with push arm) Door Width: Max. 1200mm / 47.2″ Min. 660mm / 26″ Max. Opening Angle:120 degrees Environment Temperature: -20C to 50C -4F to 122F Operation noise: Less than 55db