12V 4-Channel Relay Module for Arduino 

12V 4-Channel Relay Module is a high-current switching board designed for controlling appliances, industrial equipment, and automation systems requiring reliable 12V relay operation. Each of the four independent channels is triggered by a low-level input signal, making it directly compatible with virtually all microcontroller platforms including Arduino, 8051, AVR, PIC, DSP, ARM, MSP430,

Key Features:

• 12V coil voltage — ideal for 12V automotive, industrial, and panel systems
• Low level trigger (active LOW) — IN1–IN4 signal lines trigger at low level
• 50–60mA driver current per channel — compatible with direct MCU GPIO output
• AC250V/10A and DC30V/10A load ratings — handles high-current mains and DC loads
• Independent JD-VCC relay power supply — isolate relay coil power from signal power
• LED status indicators — instant visual confirmation of each relay state
• Supports all major MCU platforms — Arduino, PLC, ARM, AVR, PIC, DSP, MSP430
• 4 independent channels — control up to 4 separate loads simultaneously
• Screw terminals per channel — NO/COM/NC for flexible load wiring