1、Accurate Timing Function: This mechanical box timer switch has an accurate timing function to ensure that the connected circuits start and shut down on time, which is safe and reliable. 2、Built In 80mAh Lithium Battery: This mechanical lighting and appliance timer has a built in 80mAh lithium battery, without the need for external power supply, easy to carry and install. 3、Simple Operation Interface: This mechanical appliance timer adopts a simple and easy to use operation interface, which is convenient and quick to operate without any complicated operation. 4、Sturdy And Endurable: The shell of this mechanical timer is made of excellent plastic and the same material, which is sturdy, abrasion resistant and erosion resistant, and can guard the electrical components from being damaged easily in the long term. 5、Wide Application: This mechanical time switch has a wide range of applications and can be used for agricultural irrigation, garage door control, lighting control, factories, workshops and so on.