Features: This 3.3V/5V dimming module features 4 channel output for multi device control, brightness adjustment perfect for lighting. Engineered with 3.3V/5V, integrated overcurrent/short circuit protective circuits, and clearly labeled terminals for effortless wiring in various electronic configurations. Ideal for electronics enthusiasts, smart home developers, and commercial lighting installers requiring dimmer control in automation projects. Optimizes lighting in residential spaces, creates dynamic stage effects in entertainment venues, and enables energy efficient management in retail environments. Built with industrial metal connector, this dimming power module ensuring for prolonged operational in both electronics and professional lighting. Specifications: Component:Metal Size:Approx.72x60mm/2.36x2.83inch Package Includes: 1Pc Light Dimmer Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.