Description:  220-240V 16A DIN Rail Digital Programmable Timer Switch.    It is widely used in 7 days programmable control of streetlight, neon light (sign), lamp, water heater, air conditioner, billboard, electric cooker, booster,  sprayer, bottler, preheater, agriculture facilities and broadcasting equipment etc.    Ideal for household use in DB Boards,  Advanced pre-setting one week before,  3500 Watt or 16 Amps,  Built-in battery for backup the memory when power failure,  Auto time error correction 30 sec, weekly,  Repeat programs with 16 on or off settings, and setting on or off manually,    Specification :  Volatge 220-240V, 50 or 60Hz   Number of circuits 1 changeover switch (SPDT)   Error ≤2s or day(25°C)   On or Off operation 8 on and 8 off   Power 4.5VA (max)   Bound 1 min - 168 hours   Battery backup ≥ 15days   Minimum interval 1min   Load capacity 16A(8)A 220-240V AC   Humidity 35-85 percent RH   Operating temperature 10-55°C     Pregramming steps:  Steps   Key-press   programming  1  press " P "   Setting 1 on time (display 1 on)  2  press Hand or Mand Setting hours and minutes  3 press Dand Select same everyday, different everyday, MO-FR, MO-SA, SA-SU, MO WEFR, TU TH SA, MO-WE, TH-SA (if it is same everyday, no need to press this key)  4  press " P "    Setting 1 OFF  time (display 1 off)  5  press Hand or Mand Setting hours and minutes turn off time  6  press Dand If you want the same setting everyday,you don't need to press this key  7  repeat step 2-6 Setting the 2 to17 ON and OFF time  8  press “ ” Completeset   Full time clock setting :  (1) Press the " clip_image001 " and " Dand " at same time to set the week.  (2) Press the " clip_image001 " and " Hand " at same time to set the hours.  (3) Press the " clip_image001 " and " Mand " 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 x Digital Programmable Timer,  1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.