Din rail installation: Advanced pre-setting one week before; Digital electronics general purpose time switch with daily and programs; Repeat programs with 16 on/off settings, 18 times pulse programs,and setting on/off manually. Versatile and multipurpose: 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. Graet vaule for money: Widely used in the automatic control in street lamps, neon lights, electric bells, radio and television equipment, production equipment, electrical equipment and household appliances. Excellent performance: Large function buttons, 16 ON/OFF programs a day, Built-in battery lasts up to 15 days; Real time display function, programming in 24 hour or 7 day cycles, reset button. General configuration: LCD displays real time to Hour/Minute and ON/AUTO/OFF; DIN rail installation, DIN rail is not included.