Feature: 1. TIMER SWITCH: Timing switch can be turned on and off regularly, allowing home appliances to work reasonably. 2. SWITCH PROGRAM: A total of 16 switching programs can be set, each program can be set to cycle 1‑16 times, the timing range is 1 min to 168 hours. 3. DATA PRESERVATION: The electronic timer has built in battery for program power off memory, which can save 60 days of data without resetting. 4. PLUG IN WIRING: The programmable timer is plug in wiring design, equipped with instructions, easy to install and use. 5. WIDE APPLICATION: Suitable for timing control of street lights, advertising lights, electric boxes, water pumps, water heaters, chargers and other equipment. Specification: Item Type: Electronic Timer Model: Cn101A Material: Pa66 Built in Battery: NiMH Battery ZM40H 1.2V 40mAh Rated Voltage: AC 220-240V 50/60Hz or DC 12V Voltage Limit: AC180V-250V Hysteresis: ≤1 group/day (25℃) On Off Operation: 16 on 16 off Power Consumption: 2VA (Maximum) Display: LCD Service Life: MECHANIAL 10⁷, ELECTRICALLY 10⁵ Minimum Interval: 1 minute Counting Completed: 1s-99min 56s Resistive Load: 16A/25V AC Hysteresis Load: 10A/250V AC Lamp Load: 2000W Switch Contact: 1 changeover Switch Environmental Humidity: 35-85%RH. Package List: 1 x Timer Switch1 x User Manual