ITEM NAME:Pair H7 Anti Flicker Adapter Resistor Canceller Decoder Conversion Kit Description: High quality and long service life. Easy plug and play, no modification needed. Solve error message on dash board and headlight flickering issue. Work with all aftermarket LED kits: H7 2 pieces error canceler decoder kit for LED headlight, fog light. Specification: Type: electronic Size: approx.30x3x3cm Voltage: 9V-16V Package Includes: 2 Pieces Anti Flicker Error Decoder Note: It will not work on Switchback LED bulbs! Please check the model before ordering. If there any question, please.2 Pieces Anti Flicker Error Decoder. 2 pieces error canceler decoder kit for LED headlight, fog light. Easy plug and play, no modification needed. High quality and long service life.