Abstract: A surge protection device for providing bidirectional detections of one or more surge events. The device has low dynamic resistance during a surge protection mode, and it conducts ultra-low leakage current outside of the surge protection mode. In one implementation, the device includes first and second power transistors, a sensing circuit, and a driver circuit. The first power transistor includes a first source terminal that is coupled to the substrate, and the second power transistor includes a second source terminal that is coupled to the substrate. The sensing circuit is configured to detect a voltage of the first pin relative to the second pin and generate a sense signal when the voltage exceeds a threshold. The driver circuit is configured to generate a driver signal based on the sense signal and output the driver signal to at least one of the first or second gate terminal.

Abstract: A lighting module used in a motor vehicle. The lighting module includes a housing and a light source assembly provided in the housing, wherein at least one thermal baffle is provided beside the light source assembly, and a thermal resistant layer is provided on at least one portion of the thermal baffle. The present utility model also provides a motor vehicle including the lighting module. The lighting module and the motor vehicle of the present utility model can reduce high temperature damage, and can have a low cost and a compact structure.

Abstract: The present utility model discloses a light guiding device and a vehicle lamp. The light guiding device includes a light guide medium component configured to allow light to be transmitted through it from one end thereof to another end thereof. A light guide fixing component is arranged on the light guide medium component and configured to fix the light guide medium component, wherein the light guide medium component and the light guide fixing component are both at least partly made of a transparent material. The light guide fixing component has a light directing portion configured to direct the light leaked from the light guide medium component into the light guide fixing component to exit the light guide fixing component away from a predetermined direction. Using the light guiding device and the vehicle lamp according to the present utility model can prevent light exiting the light guide fixing component from forming undesirable light spots in an undesirable direction.