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Description: LED bulb warning error decoder is used for fog light， high beam headlamp， etc. This is a load resistor for H11 led/SMD bulbs with wire adapters to correct error code or fast blinking issues related to the low current draw when using LED bulbs in place of halogen bulbs. Use most when you met the Failure when your try to converted your original Halogen lamps to LED Lights. Product Name H11 Decoder Material Plastic，Electric Parts Color Black Net Weight 57g Package Content 2 Pcs x H11 Decoder Total Length 18cm /7.1" Decoder Size 3.4 x 1.7cm / 1.3" x 0.67" (L*D)