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Discussion Starter · #1 ·
I’ve been getting conflicting info, changed my rear lights to leds not the indicators as of yet, fronts are suprebright halogens , im just about to change the indicators to led, some are saying no as you can’t have front leds - but thats wrong surely because of the day runners being led,
 

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I just did a quick online search and found this snippet ---
Brexit 2021 Update
Please note that since January 2021, the MOT Inspection manual has been updated to include LED bulbs.
Section 4.1.4 now states the following:
“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.”
This is a brand new update that seems to only focus on headlights.
There are no mentions to fail other LED bulbs such as brake lights, tail lights or reversing lights.

The law was drawn up in 1986 and is outdated but apparently it is being looked at to bring it up to date.
It still stands though that only white light is allowed at the front, and red at the rear ( with the exception of reversing lights and number plate lights ).
 

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as above, you cannot fit led or gas discharge lights to a standard headlight module.
(you can fit them if you also change to a lens/reflector designed for them)
all other lights are ok, but you should use e maked bulbs

the mot testers manual is avaliable online at
MOT inspection manual: cars and passenger vehicles - Guidance - GOV.UK (www.gov.uk)

section 4 covers lighting, and the relevant part is quoted below.
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Existing halogen headlamp units on vehicles first used on or after 1 April 1986 must 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 for light source and lamp not compatible.

This does not refer to complete replacement headlamp units which may be constructed with HID or LED light sources.

If a complete headlamp unit has been replaced with a unit that was manufactured with HID or LED light sources, it must not be failed for ‘Light source and lamp not compatible’ but it must meet all other requirements detailed in section 4 of this manual specific to the type fitted at the time of test.

You can identify HID headlamps from:

  • ‘DCR’ mark on the headlamp lens or body
  • an igniter module or inverter behind the headlamp
  • taking a few seconds to reach full intensity
  • a bluish tinge to the light
HID headlamps use high voltage. You should take care when inspecting these headlamps.
"
 
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