Easy to read LCD display with LED indicators. Minimum interval of 1 second. 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 preserves settings during power outages. Repeat daily programs with 8 on/off settings; manual on/off control available. Ideal for household use and panel or wall mounting. Specifications: Model Number: CN101S-5V Power Supply: 5V Max Load: 16A Minimum Interval: 1 second Timing Range: 1 second to 168 hours Setting Groups: 8 ON/OFF per day Programs: 15 Groups Black-out Memory: 60 days Average Error: Less than 2 seconds per day Battery Type: 1.2V rechargeable (internal) Installation: Panel or wall mounted Dimensions: 7.0 cm x 7.0 cm x 4.0 cm Material: ABS + electronic components Color: White Package Contents: 1 x TM618N-4 Switch 1 x User Manual Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.