Advanced Preset Function: This DIN rail programmable digital timer switch allows for advanced weekly presetting with a universal digital electronic switch for daily and weekly programs, with minute-level setting. Flexible Programming: The relay's LCD screen is programmable, displaying real-time hour/minute and ON/AUTO/OFF status. It can automatically switch power on and off for various electrical appliances according to the user's set time. Wide Application: Control street lights, neon signs, advertising billboards, production equipment, radio and television equipment, and other electrical equipment and household appliances that need to be switched on and off regularly. Super Anti-Interference Capacity: The timer switch is equipped with a built-in 1.2V/40mA rechargeable battery and an industrial-grade chip, ensuring high precision and strong anti-interference capability. Specifications: Input Voltage: AC220V Rated Contact Voltage: AC 180v to 264v (50/60Hz) Charging Capacity: 16A 250vac (resistive load) On/Off Operation: 16 on/off (manual/automatic) Display: LCD Power: 4.5va (max.) Error: ≤ 2 S / day (25°C) Installation Method: DIN Rail (not included) Limitation: 1 minute to 168 hours Operating Temperature: -10°C to 55°C Dimensions: 86 x 36 x 65 mm / 3.38 x 1.41 x 2.56 inches Quantity: 1 Description: When using the timer switch for the first time, input AC and charge the built-in battery, then press the reset button. The timer switch defaults to 24-hour mode. Press and hold the time button (bottom left, next to Reset) for 5 seconds until fm is displayed for 12-hour mode. Press and hold the time button again for 5 seconds to return to 24-hour mode. Programming Instructions: 1. Press P to set "1 on" time (displays 1 on) 2. Press D + Select weekdays (no need to press this button if you want to set the same days every day) 3. Press H+/M+ to set hours and minutes 4. Press P to set "1 off" time (1 off is displayed) 5. Press P Select weekdays (no need to press this button if you want to set the same settings every day) 6. Press H+/M+ to set hours and minutes 7. Repeat steps 2 to 6 to set another open/close time 8. Press Time (bottom left, next to Reset) to exit Package Includes: 1 Timer Switch 1 English Manual