, stabilized 12V DC power filter rectifier for car rearview camera. Designed to supply stable 12V DC power to the rear camera. Helps resolve issues such as screen distortion or black screen during reverse camera operation. Professional design with reliable performance and durability. Easy to install: input connects to reverse light positive and negative terminals; output connects to camera positive and negative terminals. Fitment: Suitable for German and American car models. Installation Method: Input Red Wire: Reverse Light Positive Input Black Wire: Reverse Light Negative Output Red Wire: Camera Positive Output Black Wire: Camera Negative Dimensions: 4.8 x 2.6 x 1.5 cm / 1.9 x 1.0 x 0.6 in Material: Plastic Color: Black Package Includes: 1 x Rectifier Note: Other items not included. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement tolerance: +/- 1-3 cm.