Specifications: Input Voltage: 24Vac/Dc, 110Vac, 220Vac (Optional) Contact Voltage (Output): 220V 250Vac 50/60Hz Hystrsis: 2 Sec/Day (25 C) On/Off Operation: 17 On/Off Power: 7.5 Va (Max) Display: Lcd Minimum Interval: 1 Minute Switch Contact: 1 Changeover Switch Power: Lithium Battery Operating Temperature: -10 C + 40 C Humidity: 35~85% Rh Instruction: 1.Press Button C to Turn On The Switch. At First, Press Button "Time" (Bottom Middle of C and C/R), Then Press D+, H+, M+ to Set The Clock to The Current Time. Programming: Tap Programming Button 1 Press P 1 Hour Setting On (1On Display) 2 Press H+/M+ Hour Setting and Minutes 3 Press D+ Select The Same Every Day, Different Every Day, Mo-Fr, Mo-Sa, Sa-Su, Mo We Fr, Tu Th Sa, Mo-We, Th-Sa. (Even If Everyday, No Need to Press This Button) 4 Press P Setting 1 Hour Off (Display 1 Off) 5 Press H+/M+ Setting Off Hours and Minutes 6 Press D+ If You Want The Same Setting Every Day, You Don'T Need to Press This Button 7 Repeat The Steps 2~6 Set 2-17 Hour On/Off 8 Press "Time" End If The Setting is Incorrect, Please Press C/R to Cancel Or Reset The Programs. If All Buttons Are Locked (No Response), Press and Hold C/R for 8 Seconds to Unlock. If You Don'T Need 17 On/Off Settings, Press Time to Complete. Package Includes: 1 X Timer Switch Concept of Value Providing You with A Quality and Rewarding Shopping Experience is The Goal Which We Are Working Hard Towards. ,"