Description: Some models of German cars and 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 sn. Specifications: Condition: 100% Brand New Material: Plastic Color: Black Size: 4.8 * 2.6 * 1.5cm/1.9 * 1.0 * 0.6in Package Weight: approx.17g Fitment: Replacement Replacement Replacement Replacement Replacement for Germany/American Car Series Package List: 1 * Rectifier Installation Method: Input Red Wire: Reversing Light Positive Pole Input Black Wire: Reversing Light Negative Pole Output Red Wire: Camera Positive Pole Output Black Wire: Camera Negative Pole Note: Please do not purchase if your car is non-German or American Car Series, because there is different currents Replacement Replacement Replacement Replacement Replacement for different car series, non-pulsed signal interference, use this filter line is invalid!