MOSFET is an electronic devices with good switching characteristics. It is widely used in circuits, such as power supplies switching ,motor drives, lighting dimmer and so on. If there are other LED strips that need to be controlled, just connect the positive pole of the LED strip to the positive pole (+) of the module, and connect the negative pole of the LED strip to switch 2 (S2), switch 3 (S3), switch 4 (S4): The connection of the control terminal is much simpler. We only need to connect the corresponding control port to the sensor expansion board of Arduino through the sensor connection line, and then we can control these 12V LED strips. Delivery Quantity: 2pcs, Color: orange Kind tips 1. Package content: only the above package content, excluding other products. 2. The size is measured manually, please allow 1-2 cm measurement error 3. Due to different displays and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.