Optimized Title: HiLetgo 5V One Channel Relay Module for Opto Isolated High/Low Level Trigger

The 5V 1 Channel Relay Module features a fault-tolerant design, ensuring that the relay will not operate even if the control line is broken. The module is equipped with a power indicator (green) and a relay status indicator (red), providing visual feedback on the module's operation. The compact module dimensions of 50mm26mm18.5mm (LWH) make it suitable for a variety of applications.

The module's interface includes the following connections: - Input: VCC (Relay power supply +), GND (Relay power supply -), and IN (Signal trigger input, selectable between high or low level signal via jumper) - Output: NO (Relay normally open), COM (Relay common pin), and NC (Relay normally closed)

The module's trigger mode can be configured using a jumper. When the jumper is connected to the "L" position, the module will operate in low-level trigger mode. In this mode, when the "IN" input receives a low-level signal, the "NO" terminal will connect with the "COM" terminal, and when the "IN" input receives a high-level signal, the "NC" terminal will connect with the "COM" terminal.

Conversely, when the jumper is connected to the "H" position, the module will operate in high-level trigger mode. In this mode, when the "IN" input receives a high-level signal, the "NO" terminal will connect with the "COM" terminal, and when the "IN" input receives a low-level signal, the "NC" terminal will connect with the "COM" terminal.

The module utilizes genuine quality relays with a maximum load capacity of AC 250V/10A or DC 30V/10A. The use of SMD optocoupler isolation provides strong driving capability and stable performance, with a trigger current of 5mA.

The module's interface design is user-friendly, with all interfaces available through direct connection terminal leads, making it convenient for users to integrate the module into their projects.

The package includes two 5V 1 Channel Relay Modules, providing users with a reliable and versatile solution for their control and switching applications.

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