You can use the timer to turn on/off any electrical equipment at a preset time. 16 on/off programs per day, up to 15 combinations per week. 24 hours / 7 days a week programmable. Built-in battery backup saves memory and programmed settings during power outages. Automatic time error correction of +/- 30 seconds weekly. Repeat programs with 16 on/off settings; manual on/off control available. Easy-to-read LCD display with LED indicators. Countdown off time range from 1 to 24 hours. Multipurpose 7-day programmable timer switch features: 1. Clock display (12/24-hour format) 2. Timer (7 programmable modes) 3. Countdown function 4. Automatic weekly time correction 5. Sleep mode Usage: The TM618 timer module can automatically turn on or off various electrical devices and power sources according to preset times. Suitable for lights, signs, streetlights, appliances, and other equipment. The digital timer switch includes a rechargeable battery (1.2V/40mAh) and uses a high-accuracy CMOS chip with strong anti-interference performance. Easy to operate. Why choose TM618N? 1. 1.6-inch large LCD display for easy reading. 2. Load capacity: 16A @ 250VAC. 3. Simple operation. Color: White Material: Plastic Package Contents: 1 x Timer Switch Note: Light reflection and differences in display screens may cause slight variations in color appearance. Measurement allows an error of +/- 1-3 cm.