Stabilized 12V DC power filter rectifier for car rearview camera. Provides stable 12V DC power supply to the rear camera. Helps resolve issues of screen distortion or black screen during camera reversing operation. Professionally manufactured with high-quality components for reliable and stable performance. Easy to install: input connects to reverse light positive and negative terminals; output connects to camera positive and negative terminals. Fitment: Compatible with German and American car series. Installation: Input Red Wire: Connect to reverse light positive pole Input Black Wire: Connect to reverse light negative pole Output Red Wire: Connect to camera positive pole Output Black Wire: Connect to camera negative pole Dimensions: 4.8 x 2.6 x 1.5 cm / 1.9 x 1.0 x 0.6 in Material: Plastic Color: Black Package Contents: 1 x Rectifier Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.