5v relay module with optocoupler (choose channels)

Features:

• 5V 1/2/4/6/8/16 channels relay module
• Configureable Activation Logic, High or Low, via mini jumper
• Maximum Current Rating: 10A
• Maximum Voltage Rating: AC 250V
• Can control various appliances with large current and high voltage
• Can be controlled directly by microcontroller such as Arduino, 8051, AVR, PIC, DSP and ARM
• Build in 4 units of Opto-Isolator for extra isolation and protection to controller.
• A power indicator LED
• Each relay comes with an indicator LED