[Professional Quality] – The relay filter rectifier is made of high-precision components with a plastic shell, sturdy construction, waterproof design, and good abrasion resistance for long service life. [Easy to Use] – Easy to install with no modification required. Wire configuration: Red wire input connects to reverse light positive terminal; black wire input connects to reverse light negative terminal; red wire output connects to camera positive terminal; black wire output connects to camera negative terminal. [Good Performance] – This car rearview rectifier supplies stable 12V DC power to the rearview camera, helping to resolve display issues such as screen distortion or black screen when using a rear reversing camera. Features high performance and stable operation. [Check Compatibility First] – This 12V power relay filter rectifier supplies stabilized 12V DC power to rearview cameras. Suitable for various vehicle models. Dimensions: 4.8 x 2.6 x 1.5 cm (1.9 x 1.0 x 0.6 in). Type: Cable Adapter Voltage: 12V Color: Black and Red Material: Plastic Size: 48 x 16 x 26 mm Package Contents: 1 x Rectifier Note: Lighting conditions and screen settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.