Solve below problems: This product contains both Power Decode and filter decode function. The indicator of the instrument panel lights when the headlight is used as Fault Light. The indicator of the instrument panel doesnt light when the headlight is used as High Beam. The Led head lights flash when starting the engine. The engine stops working when turning on the Led head lights. Error warning. Led head lights dont light. Led head lights keep flashing after installation. One of the Led head lights, but the other one doesnt light. Led head lights automatically turn off after lighting up for few minutes. Suitable for most carsGermanyEuropean American Cars, motorcycles, motos, ATVs, UTVs, Boats and most of vehicles Features and Specifications: Play and plug High temperature prevention, never melt Suit for headlight and fog light:H1 H3 H4 H7 H8/H9/H11 H13 9005 9006 9004 9007 880 Voltage 9-36V IP68 grade waterproof Package Listing: 2pcs headlight canbus decoder Note: This product may not work for all vehicles. Some known incompatible vehicles including M INI andCompass SUV