1. This AC 220V Trigger Delay Switch is a versatile board that can turn on and off electrical devices with adjustable timing. It functions as a reliable timer relay module, providing precise control over the activation and deactivation of connected equipment. 2. This module flexibility in programming the trigger delay. Users can easily set the time interval according to their specific requirements, making it suitable for a wide range of applications. 3. The adjustable mounting accessories allow for convenient installation in various electrical setups. Whether it's in a control panel, industrial machinery, or home automation system, this module can be securely and easily mounted. 4. The turn on and off functionality is accurately controlled through the trigger delay mechanism. It ensures that electrical devices are powered on or off at the desired moments, enhancing the efficiency and automation of the overall system. 5. As a trigger delay switch for AC 220V, it provides a cost effective solution for achieving timed operations. It simplifies the process of adding time based control to electrical circuits without the need for complex and expensive PLC systems in many cases.