1. Easy-to-read LCD display with LED indicators. 2. Minimum interval of 1 second. 3. 8 ON/OFF programs per day, 15 combinations per week. 4. Programmable 24 hours/week. Countdown function. Maximum 24-hour countdown to OFF. Built-in rechargeable battery to save memory during power outages. 5. Repeat programs with 8 on/off settings, and manual on/off setting. Perfect for household use in panel-mounted applications. 1. Model Number: CN101S-5V 2. Power Supply: 5V 3. Max Load: 16A 4. Min Interval: 1 second 5. Time Range: 1 second to 168 hours 6. Setting Groups: 8 ON/OFF per day 7. Programs: 15 groups 8. Black-out: 60 days 9. Average Error: Less than 2 sec/day 10. Battery Type: 1.2V, internal, rechargeable 11. Installation: Panel/wall mounted Size: 7.0cm x 7.0cm x 4.0cm Material: ABS+electronic components Color: white Package Contents: 1 x TM618N-4 switch 1 x User Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.