Product Specifications:Equipped with high-current relay 250VAC@10A / 30VDC@10AIt can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etcTrigger current: 5mAWorking voltage: 12VModule size: 50 x 26 x 18.5mm (L x W x H)Four mounting bolts holes, diameter 3.1mmScrew terminals (Terminal Block) provided (C, NC , NO) for quick and easy connectionFlyback diode to protect your microcontrollerInput Signal Pin connected to Burg stick for easy accessibilityLED Status indicators to indicate the relay ON/OFF statusPinout:Let’s take a look at the pinout.Power Pins:GND is the common ground pin.VCC pin provides power to the module.Control Pin:IN pin is used to control the relay. This is an active low pin, which means that pulling it LOW activates the relay and pulling it HIGH deactivates it.Output Terminals:COM terminal connects to the device you intend to control.NC terminal is normally connected to the COM terminal, unless you activate the relay, which breaks the connection.NO terminal is normally open, unless you activate the relay that connects it to the COM terminal.Package Includes:1x Relay Module 1 ChannelDocuments:DatasheetTutorial