Product Description Material: Electronic material Output driver capacity: 250VAC-10A, 125VAC-10A, 30VDC-10A, 28VDC-10A; Easy to use, each output group has a simple 3-wire structure and 6 output terminals are reserved; The input is directly connected to the IO port of the single-chip microcomputer or digital circuit, the input high-level relay is tightened, and the input low-level relay is released; The working voltage is 5V, the pull-in current is about 70mA per channel, and the relay status indicator is provided; Full-chip components, reasonable drive circuit design, using 8050 three-tube drive relay action; Equipped with mounting screw holes for a Easy installation, the circuit board size is 1.8cm*4.0cm*1.9cm and the weight is 15g; Quantity: 3pcs set Package content: 3*1 relay module br/>1.This microcontroller compatible board with 1 relay Output driver capacity: 250VAC-10A, 125VAC-10A, 30VDC-10A, 28VDC-10A; The 1-channel relay module is equipped with a transistor and diode to switch higher loads safely, reliably and with little current. Thanks to its compact size, the 1-channel relay can be used in almost any project. 2. The module is also equipped with a generously dimensioned relay in order to be able to reliably carry out many switching operations. The module can be securely mounted in housings thanks to the practical bores. 3. The channel of the module is also connected to an LED that displays the switching status of the relay. The KY-019 relay is used to control AC circuits. The relay acts as a switch that responds to a signal. For this reason, it is widely used in IoT projects to control lights and other electronic devices. 4.Relays are suitable for driving high-power electronic devices such as lights, electric fans and air conditioners This relay module can be used to control high voltage with a low voltage by connecting it to an MCU 5.Controls DC or AC signals220V AC load working voltage: 5V; With operation indicator and signal output indicator