Features: brand new and high quality The car rearview rectifier can efficiently provide 12V for DC power supply for your rearview camera, helping to solve the problem of "ring screen" or "black screen" when using the rearview camera. Professional camera straightening machine with high performance and stable performance. The reversing rectifier (or filter box) can solve the interference problems such as the ripple splash-screen of the reversing camera. The relay filter rectifier is made of high-quality precision components, plastic for shell, solid structure, waterproof design, good wear resistance, high quality and long service life. Easy to install, no need to modify. Take a look at the configuration of the input red wire: reflective positive/input black wire: reflective negative/output red wire: camera positive/output black wire: camera negative. Specifications: Material:Plastic+ABS Color:Black Size:As Picture Shown Package Includes: 1x Reverse Rectifier note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.