Specification: Origin: Mainland China Type: Module Condition: New Model Number: Delay Timer Relay Switch Module Main chip: NE555 Operating voltage: DC 12V / 5V 1. Turn on the power relay delayed absorption 2. Delay time is adjustable, (0~10 seconds) 4. Increase the potentiometer can increase the delay time 5. Increase capacitance C1 can increase the delay time 6. With input power indicator 7. With relay suction indicator light 8. Can control AC 220V/10A a device (maximum control device 2000W) 9. With relay current protection 10. Delay time formula: T = 1.1RC Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1*Time Delay Relay Module 1.Adjustable Delay Time: The time delay relay module allows for adjustable delay time, ranging from 0 to 10 seconds.Users can easily set the desired delay duration according to their specific needs. 2.Flexibility with Components: By adding a potentiometer, the delay time can be increased beyond the default range.Increasing the value of capacitor C1 also extends the delay time, this time relay shield module providing flexibility for different applications. 3.Clear Power Indication: The timing relay shield board features an input power indicator LED, providing a clear visual indication of power status.Users can easily determine if the module is powered on and functioning properly. 4.Relay Activation Indicator: Equipped with a relay activation indicator LED, the monostable switch delay board provides a visual confirmation when the relay is engaged.This feature enhances convenience and ensures that users can easily monitor the status of the relay. 5.Versatile Control Capability: The delay timer relay switch module can control devices up to 220V/10A (max load of 2000W) with its relay switch.It offers the flexibility to control various AC-powered equipment within the specified limits.