Easy to read LCD display with LED indicators. Minimum 1 second interval setting. 8 ON/OFF programs per day, up to 15 program combinations per week. 24-hour and weekly programmable timer with countdown function. Maximum countdown to OFF: 24 hours. Built-in rechargeable battery retains memory during power outages. Repeat daily programs with 8 on/off settings; manual on/off control available. Ideal for household applications with panel mounting. Model number: CN101S-5V Power supply: 5V Maximum load: 16A Minimum interval: 1 second Timing range: 1 second to 168 hours Setting groups: 8 ON/OFF per day Programs: 15 groups Blackout protection: Up to 60 days Average timing error: Less than 2 seconds per day Battery type: 1.2V internal rechargeable battery Installation: Panel or wall mount Dimensions: 7.0 cm x 7.0 cm x 4.0 cm Material: ABS plastic and electronic components Color: White Package Contents: 1 x TM618N-4 switch 1 x User Manual Note: Light and screen display differences may cause slight color variations between the product image and actual item. Measurement error allowed is +/- 1-3 cm.