Use the timer to switch ON/OFF any electrical appliance at a preset time. 16 ON/OFF programs per day, 15 combinations per week. Programmable 24/7. Built-in battery to save memory (save the programs you set) in case of power failure. Automatic time error correction +/- 30 seconds, weekly. Repeat programs with 16 on/off settings and manual on/off setting. Easy-to-read LCD display, LED indicators. Countdown OFF time range from 1 minute to 24 hours. VERSATILE 7-TIME TIMER SWITCH FIVE FUNCTION DAYS: 1. CLOCK DISPLAY (12/24H FORMAT) 2. TIMER (PROGRAMMABLE FOR 7 DAYS) 3. COUNTDOWN 4. AUTOMATIC CORRECTION OF TIME DEVIATION, WEEKLY 5. SLEEP MODE Usage: The TM618 TIMER MODULE can automatically open or close various types of electrical appliances and power according to the preset time. Items can include street lights, neon lights (signs), advertising signs, electrical appliances, broadcasting equipment, etc. The digital timer switch has a rechargeable battery, at 1.2V/40Ma, high-precision CMOS chip, strong anti-interference, easy to use. Why choose TM618N? 1. 1.6 inch large LCD display, easy to read. 2. Excellent load capacity, 16amp@250vac. 3. Easy to program. Color: White Material: plastic Package Contents: 2 x Timer Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.