The Single Channel 3V relays Isolation Driver Module delivers precise signals control with enhanceds isolation technology, ensuring stable low voltages operations for development board accessories. Featuring universals compatibility and modulars design, this relays control module integrates seamlessly with open source hardware systems while preventings reverse current damage via PCB materials. for electronics enthusiasts, iots developers, and industrial engineers seeking low power for prototyping or automation projects requiring isolated driver modules. Perfect for solar powered devices, robotics controls, and sensorings based application where energy efficient 3V relays modules ensures safe signals transmission in setups. Package includes: 5Pcs Power relays Module