ENERGY SAVING: Connect your device directly to power via the mini electrical outlet timer to automatically control the opening and closing of home appliances according to the schedule you set.Save energy and simplify your daily work. SWITCHING FUNCTION: Support 16 groups per day on/off, one button automatic, can be set to cycle day/week.Two-way control design, 3.4 is a normally open switch, 3.5 is a normally closed switch, and 3.4.5 are connected as dual control switches.(With instructions for use, and there are also methods at the bottom of the page） HIGH PRECISION: This built-in 1.2V/40mA rechargeable point timer relay, high precision, industrial grade chip, strong anti-jamming, using 8-bit industrial grade chip, small error, high stability, accurate travel time, time ofdaily commute the error is less than 2 seconds. SUPERIOR PERFORMANCE: with built-in high-performance batteries as backup power, it can maintain time display and store data for more than 6 months when disconnected from the mains.The time control circuit and circuitcharging are separated from each other.The passive output at the output can also be used for signal control. APPLICATION: Widely used to control lamp, water heater, sprayer, bottler, preheater, agricultural facilities, broadcast equipment, household appliances, etc.aquarium lighting and other household appliances to maximize energy savings.