This 4-channel relay module with an operating voltage of 5V is suitable for applications in automation technology and offers simple control of loads via digital signals. It is compatible with various microcontroller platforms such as Arduino (or a compatible board such as Dasduino). Technical specifications: https://elecena.pl/product/29666263/developer-boards-relay-module-4-channels-5-v 2026-01-04 https://elecena.pl/product/29666263/developer-boards-relay-module-4-channels-5-v 2026-02-14