Feature: *Made of high quality material, and practical to use *Some models of German cars and for American cars will output voltage interference after the engine is started. The power supply to the reversing light is not pure DC power supply, but a pulse signal is superimposed on top oscilloscope can be used to test if the conditions will it found a similar squarewave signal. Camera power supply line directly on the reversing light, because the working voltage is very unstable cause the camera does not work properly, the video signal output is also not normal, so the host can see there is a severe interference, jitter, or not to switch reversing screen. * new, stabilized 12 DC power filter rectifier car rearview camera. *Used to supply the stabilized 12V DC power to the rear camera. *To solve the issue of the"screen cyclowarp" or"black screen" when using a rear camera reversing. *Professional manufacturing, high characteristic and stable performance. *Easy to install, input connect with reversing light positive and negative, output wire connect with camera positive and negative. Specifications: *Condition: New *Material: Plastic *Color: Black *Size: 4.8* 2.6* 1.5cm/1.9* 1.0* 0.6in *Package Weight: approx.17g *Fitment: Germany/for American Car Series Package Contents: 1* Rectifier _x000D_ Due to differences in shooting equipment, displays, and production batches, the product may have slight color differences. This is normal, please refer to the actual product. We have tried our best to restore the true color through professional equipment, but we still recommend that you watch it under natural light for the most accurate visual effect.