Ensure performance for LED-HL [~H8 / H11 / H16]. Some car models have specific challenges for LED-based retrofit lamps. Unique Philips CANbus adaptors ensure smooth functioning for any electrical issues. They solve possible issues in regards to error messages on your dashboard or LED flickering. Easy installation: Thanks to the advanced design, the CANbus adaptor is easily installed for good performance from day one. Optimal performance in all conditions: The automotive design of the CANbus adaptor takes into consideration the demanding conditions of everyday use in the engine compartment.