May I be the first to say that would be illegal to do so.
Quote:
The MoT testing manual was also updated in 2021, telling testers: “Existing halogen headlamp units should not be converted to be used with high intensity discharge (HID) or light emitting diode (LED) bulbs. If such a conversion has been done, you must fail the headlamp [the car will fail its MoT as a result].”
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