The Fotek SSR-25DA Solid State Relay is a high-efficiency DC to AC switching device that supports up to 25A load current with an input voltage range of 3-32V DC and output range of 24–380V AC. Featuring zero-cross switching, opto-isolation, and a compact design, it’s ideal for Arduino, ESP32, and other microcontroller-based projects. Perfect for industrial automation, heater control, and IoT applications.