- 5V relay module with optocoupler for reliable electrical isolation between input control and the load. - Flexible channel options: 1, 2, 4, or 8 relay outputs to suit a range of applications and complexity. - Designed for easy integration into different circuits; compatible with common 5V logic and microcontroller platforms. - 1-channel version available in the specified color to meet color-coding or appearance requirements. - Independently control multiple devices or circuits, improving organization and reducing interference for reliable operation. - Use scenarios: - Home automation: drive lights, fans, or outlets from a microcontroller with electrical isolation. - Industrial control: manage multiple actuators or indicators with separate, independently controlled channels. - DIY projects and prototypes: test and switch multiple subsystems with a single, compact module.