ITEM NAME:2 Pieces HB4 HB3 9005 9006 LED Headlight Decoder Error Warning Canceller Description: - This listing features on 2 pieces of HB4 HB3 9005 9006 canbus warning error decoder canceler capacitor Anti-Flicker For LED headlights, fog lights. - If you've installed LED lighting kit in your car but are getting a flickering or strobe effect and error or warning codes, then these code canceling capacitors are your solution. - THEY WILL NOT WORK ON SWITCHBACK LED BULBS!!!!!!!!!!!!!!!!!!!!!!!!!! Specification: - Voltages: 9V to 36V - Work with HB4 HB3 9005 9006 headlights. - Solve error message on dash board and headlight flickering issues. - Easy plug and play, no modification needed. Package Included: 2 Pieces LED Canbus Decoders.Work with HB4 HB3 9005 9006 headlights. - If you've installed LED lighting kit in your car but are getting a flickering or strobe effect and error or warning codes, then these code canceling capacitors are your solution.