Weekly Programmable Schedule:22 ON/OFF program settings for flexible control of lighting and equipment.Built-in Lithium Battery:Maintains time and settings during power outages with a built-in battery.Timer 5 30|12v Timer Switch|Astronomical Timer Functionality:Follows sunrise/sunset for precise ON/OFF times, ideal for high latitude areas.DIN Rail Mounting:Easy installation with DIN rail mounting for a secure and organized setup.High Ambient Temperature Resistance:Operates reliably in temperatures up to 80C, suitable for diverse environments. Application:For energy savingOverload and short circuit protectionUsed in residential building and office buildingColour:WhiteMaterial:plasticThe actual product may have slight color difference or difference, which will not affect the use Package Contents:1 x Astronomical Control Switch Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.