Hoypeyfiy H4 9003 Canbus Decoder Upgraded Anti Flicker Relay Adapter Error Code Warning Canceller LED Headlight Bulbs Resistor, Pack of 2 * Upgraded Metal Housing for Strong Decoding: * Our H4 9003 LED Decoder features an upgraded metal housing that provides strong decoding capabilities. * It can eliminates error codes on the dashboard for 98% of cars. * Eliminate Error Messages: * This decoder effectively cancels error messages caused by the On-Board Computer, such as "bulb out" or "bulb failure" warnings. * Enjoy a worry-free driving experience. * Easy Installation: * Plug and play. * Our decoder comes pre-wired for direct plug-and-play installation. * No complicated wiring or additional load resistors required. * Widely Used: * Wide Compatibility with After Market LED Headlight Kits: This decoder is designed to work with most After Market LED Headlight Kits. * It can solve 95% of auto headlight issues. * Please confirm your bulb size with your owner's manual or contact the seller to ensure compatibility. * Customer Service: * Your satisfaction is our top priority. * We genuinely care about your experience with our products and services. * If you encounter any issues, rest assured that we will work diligently to resolve them to your satisfaction.