A time switch (also called a timer switch, or simply timer) is a timer that operates an electric switch controlled by the timing mechanism . ... The switch may be connected to an electric circuit operating from mains power, including via a relay or contactor; or low voltage, including battery-operated equipment in vehicles Specification: Item No. DQ001 Type of Contacts 1NO Rated Operational Ac Voltage 195/230/253V Breaking Capacity 16A 250V AC1 Max. power With Incandescent Lamps 2300W Type Of Connection With Screw Acceptable Current Rating With Ac1 16A Connection Cross-Sect.Flexible Cable 1/6mm² Connection Cross-Sect.Rigid Cable 1.5/10mm² Fixing Mode Din-Rail Frequency 50/60Hz Operating Temperature -10~55ºC Storage Temperature -20~60ºC Protection Grade IP 20 Package includes: 1 x TENSE DQ001 Time Switch Staircase Light Timer