Description: Optocoupler, High anti-interference ability Using 8050 transistor drive relay Operating voltage 12V, control level voltage compatible with 5V and 12V, low level trigger Supports all microcontroller control Industrial field; PLC control; home intelligent control Maximum AC voltage 250V, maximum current 10A, the maximum DC voltage 30V, the maximum DC current 10A Specification: Material: Plastic Color: As picture show Size: Approx. 5x4.8x1.8cm/1.97x1.89x0.71inch Package Includes: 1 piece Relay Module Board Note: Due to the difference in the measurement , pls allow an error of 1 to 3mm