Technical parameters Power:220??10% VAC 50/60HZ Full:Time Range:1Min-168Hours Timer error 2S/day Max loading current:16A Consumption:4VA Display:LCD Installation:DIN Rail Electrical Life 107 times Mechanical Life 107 times Operate Temperature:-10~+40??C Programmable 8times/week or day Size:36mm x 86mm x 65mm Operating Instructions 1.Please connect to the rated power supply andpressthe "reset" button when starting use it. 2.Programmable setting: Steps Key-press Programming content 1 press"P" Display "on" and "1" setting the first groupON time 2 press"D+" Setting theONtime one day or several days of a week 3 press"H+/M+" Setting the hourand min ofON time 4 press"P" Display "off" and "1" setting the first groupOFF time 5 press"P" Setting theOFFtime one day or several days of a week 6 press"H+/M+" Setting the hourand min ofOFF time 7 repeat the process of "A" to "F" Setting the second to eighth group ON and OFF time 8 press?¡ã Complete set 3.Full time clock setting (1)press the "" and"D+" at same time to set the week. (2)press the "" and "H+" at same time to set the hours. (3)press the "" and "M+" at same time to set the mins. (4)press the "MANUAL" will display "AUTO ON" or "AUTO OFF" (5)press the "MANUAL" can change the status,"ON" is normally open,"OFF" is normally off. Package included: 1 Pcs Digital Timer Switch NOTE:As the effect varies from monitor to monitor, there is irrevocable slightly difference in colors between the color showed on your monitor and the real one, So if dear you can not accept this very little difference, be cautious before you making the orders.thanks for understanding.