2-channel 5V 10A relay controlled by low/high state LL/HL

Product description: 2-channel 5V 10A relay module

2-channel 5V relay module is a reliable solution for microcontroller projects. It works excellently as an extension for Arduino, for Raspberry Pi, for ESP8266, and for ESP32. The module allows control by a high (High) or low (Low) state, which can be easily configured using the built-in jumper. Applied opto-isolation ensures safe separation of the control circuit from the load circuit, protecting the logic from damage. Built-in LED indication enables instant verification of power status and activity of each relay. Maximum contact load is 10A at 250V AC or 30V DC. Compact dimensions and convenient mounting make this module a versatile component for professionals and hobbyists.

Key technical specifications

• Number of channels: 2
• Trigger state: High/Low (High/Low) - change via jumper
• High-level voltage: ~2-2.4V (depending on batch)
• Coil supply: 5V
• Maximum relay load: 10A 250V AC / 10A 30V DC
• Protection: Circuit opto-isolation
• Status indication: LEDs for power and relay activation
• Output type: Normally open (NO) and normally closed (NC)
• Physical dimensions: 50mm x 41mm x 19mm
• Mounting hole spacing: 35mm x 44mm

Benefits of using the module

• Circuit safety: Full opto-isolation effectively protects the microcontroller from voltage spikes from the load circuit.
• Versatile control: Choosing high or low-level triggering via a jumper simplifies integration with different logic systems.
• High load capacity: Ability to directly control mains devices drawing up to 10A.
• Easy diagnostics: Built-in LEDs immediately indicate power status and operation of individual relays.
• Broad compatibility: Seamless cooperation with popular platforms, ideal for Arduino, for Raspberry Pi, for ESP8266, and for ESP32.

Example applications

1. 230V lighting control: Safe switching of mains lamps from a microcontroller in smart home systems.
2. Electrical device automation: Control of fans, water pumps, heaters, or solenoid valves with high power draw.
3. Remote control systems: Integration with Wi-Fi or Bluetooth modules for garage doors and window blinds via a mobile app.
4. Alarm system management: Activating sirens or warning lights when motion sensors detect a threat.
5. IoT projects: Switching power circuits in devices controlled over the internet using popular microcontroller modules.