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The (For Arduino) 5V relay module is suitable for SCM development£¬ home appliance control. It is with 5V~12V TIL control signal which can control DC / AC signal. The module is perfect for common (For Arduino) application. - Suitable for SCM development£¬ home appliance control - 5V-12V TTL control signal£¬ can control DC/AC signal - Can control 220V AC load