Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Type: Relay _x005f_x000D_ Condition: New _x005f_x000D_ Model Number: 4 Channel Relay Module _x005f_x000D_ Description: 4-channel relay expansion board _x005f_x000D_ Can control all kinds of household appliances and high current loads. _x005f_x000D_ Adopt high current relay, AC250V 10A DC30V 10A. _x005f_x000D_ Contact part of the independent wiring, reliable _x005f_x000D_ Standard interface, can be expanded on various development boards _x005f_x000D_ Equipped with fixing screw holes for easy installation _x005f_x000D_ Applicable to 51/AVR/AVR/ARM and other platforms _x005f_x000D_ Type(optioanl): 5V, 12V _x005f_x000D_ Product size: 75 x 50 x 15mm/2.95 x 1.97 x 0.59inch _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ 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! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x 4-Channel Relay Module 1. Versatile Control: The 4 channel relay module is designed to control various household appliances and high-current loads. It features large current relays with AC 250V 10A DC30V 10A, and independent wiring of contact parts for improved reliability. 2. Standard Interface: The 4 channel relay board has a standard interface that makes it easy to expand on various development boards. With its fixed screw hole positions, it's easy to install and ideal for 51/AVR/AVR/ARM and other platforms. 3. Multiple Applications: The expansion board can be used in a range of applications, from home automation and robotics to industrial control systems and IoT devices. 4. High-Quality Materials: Made with high-quality materials that are durable and reliable, the 4 way relay module is built to withstand frequent use and heavy loads. 5. Easy to Use: With simple wiring and easy-to-use features, even users with limited technical experience can quickly set up and start using the 4 way relay module shield.