ITEM NAME:2X H11 LED Headlight Canbus Error Free Warning Resistor Decoder Anti F PPH.2 Car H11 LED Headlight Canbus Error Anti Flickers Resistor Anti-Flicker Decoder. One pair (2 pieces) of error canceler decoder kit for LED headlight, fog light. 2x H11 Decoders. Socket Type: H11. 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.