SODIAL(R) 2 x HID Xenon Error Warning Cancellers Capacitors Decoders Work with all aftermarket HID xenon kits: H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004, 9005, 9006, 9007, 880, 881, 889 Solve the error message on the dash board Eliminate HID headlight flickering Solve the computer error warning encountered during the installation of the HID kits Work for all cars with computer controlled headlights, such as Benz, BMW, Audi, etc.