Features: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.Din rail installationAdvanced pre-setting one week beforeDigital electronics general purpose time switch with daily and programsRepeat programs with 16 on/off settings, 18 times pulse programs,and setting on/off manuallyBuilt-in battery for backup the memory when power failureAuto time error correction +/- 30 sec, weeklyBuilt-in 1.2v /40mA rechargeable battery, high precision, industrial-grade chip, strong anti-interference.Specification:Delay range: each week or day according to the set program cycle, 1 minute ~168 hoursWorking voltage: AC220V/50HzWorking temperature: - 20~ 60Switch capacity: 20AProgrammable number: 8 switches/dayConsumption power consumption:5WTiming error:2 seconds per dayInstallation: guide railBattery cell: rechargeable batterySize: 86*36*65mm/3.4*1.4*2.6inWeight: Approx.136g/4.8ozPackage list:1 x THC15A Timer SwitchNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..