Power converter [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 pole, black wire input to reverse light negative pole, red wire output to camera positive pole, black wire output to camera negative pole. [Good Performance] - This car rear view rectifier effectively supplies 12V DC stabilized power to the rear view camera, helping to resolve issues such as screen distortion or black screen when using a rear reversing camera. Designed for reliable and stable performance. [Check Compatibility First] - The 12V power relay filter rectifier is intended to supply 12V DC stabilized power to rear view cameras. Suitable for use with German and American car series. Dimensions: 4.8 x 2.6 x 1.5cm / 1.9 x 1.0 x 0.6in. Type: Cables & Adapters Voltage: 12V Color: Black + Red Material: Plastic Size: 48 x 16 x 26mm Package Contents: 1 x Rectifier Note: Other items not included. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.