Characterized by programmable, this timer switch has the function of 7 days programmable control, and with high-precision CMOS chip, this timer switch can provide you with perfect time controlling. Advanced technology enables this timer relay to save the programs for power failure, which is more user-friendly, and it also has the merits of strong anti-interference ability and low power consumption. This timer switch is mainly made of plastic, which is anti-corrosion and has long service life. Its length is 10cm, its width is 6cm and its height is 4.5cm. It can be used with billboard, air conditioners and so on. Item Name: Time Controller Material: Plastic Batteries: 1.2V, 40mAh (Included) Power Supply Voltage: 220V Power Waste: 1.5W Size Details: 10cm x 6cm x 4.5cm/3.94 x 2.36 x 1.77 (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Timer Relay 1 x User Manual (English)