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Color: Black + Blue- Quantity: 1- Material: PCB board- AC voltage max. 250V£¬ AC current max. 10A- DC voltage max. 30V£¬ DC current max. 10A- Uses 8550 triode drive£¬ strong drive ability- Working voltage: 5V- Module built-in green LED power indicator and red LED indicates relay status- VCC: 5V input£¬ external connect to GND- IN1 Control port£¬ connect to I/O port - Great for DIY project- Packing list: - 1 x Module