Features [Easy to install] The programmable timer switch adopts DIN rail installation [Advanced preset] This programmable timer switch can be advanced one week in advance [High practicality] This programmable timer switch is a digital electronic universal time switch with daily routines and procedures [Easy to use] This programmable timer switch can repeatedly execute 16 on/off settings, 18 pulse programming and manually set on/off procedures [Scope of application] This programmable timer switch is widely used in street lamps, water heaters, air conditioners, billboards, rice cookers, sprayers, agricultural facilities and broadcasting equipment, etc. Features: It is widely used in 7 days programmable control of streetlight, neon light (sign), lamp, water heater, air conditioner, billboard, electric cooker, b/ooster,  sprayer, bottler, preheater, agriculture facilities and broadcasting equipment etc. Din rail installation Advanced pre-setting one week before Digital electronics purpose time switch with daily and programs Repeat programs with 16 on/off settings, 18 times pulse programs,and setting on/off manually Built-in battery for backup the memory when power failure Auto time error correction +/- 30 sec, weekly Built-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 hours Working voltage: AC220V/50Hz Working temperature: - 20℃~ 60℃ Switch capacity: 16A Programmable number: 8 switches/day Consumption power consumption:≤5W Timing error:≤2 seconds per day Installation: guide rail Battery cell: rechargeable battery Size: 86*36*65mm/3.4*1.4*2.6in Weight: Approx.136g/4.8oz   Package list: 1 x THC15A Timer Switch   Package List