Thinking of fitting an LED bulb or full headlight on your bike?
Some riders are swapping their halogen bulbs for LEDs days — brighter light, less power draw, modern look. But have a little caution to stay on the UK legal sideA recent news report notes that the Driver and Vehicle Standards Agency (DVSA) is stepping up actions against the sale of illegal retrofit headlamp bulbs and warns of fines up to £1,000** for sellers of illegal bulbs.
LED bulb swaps
Yes, you can use an LED bulb for your main/dip beam, but only if it meets the right standards.Since 2021, the MOT rules changed — you won’t automatically fail just for having an LED bulb in a halogen housing. The key things are:
The beam pattern and aim must be correct (no glare to oncoming traffic).
The light colour must be white or yellow.
The lamp must work properly on dip and main beam.
But…
Not all LED kits are road-legal. If your bulb or headlight unit is marked “off-road use only” or produces a messy beam pattern, that can get you pulled or fail an MOT.
Best advice:
Buy LEDs that are specifically marked as road legal or E-approved.
After fitting, check your beam pattern on a wall — make sure it’s not blinding oncoming drivers.
Mention it at your next MOT — if the beam pattern, colour and aim are fine, you should pass.
The short version: LEDs can be legal on motorcycles in the UK — but only if fitted and aligned correctly.
Complete LED headlight assemblies
If you’re replacing the whole headlight unit with a complete LED assembly, it’s much easier to stay on the right side of the law.It’s legal if:
The headlight is E-marked (or UKCA approved).It’s designed for road use (not “off-road/show use only”).
The beam pattern, colour, and aim meet MOT standards.
These are fully tested for output and safety — so an E-approved unit fitted and aimed properly is good to go.
Units with built-in DRLs & indicators
This is where many get caught out. Some fancy LED assemblies include daytime running lights and integrated turn signals.Legal only if each function is type-approved and correctly marked (look for E-codes like “RL” for DRL, “1a” for indicators, “DC” for LED headlamp, etc.).
Not legal if:
There are no E-marks, or
The DRL doesn’t dim when the headlight’s on, or
The indicators don’t meet spacing/brightness rules (at least 240mm apart at the front).
If it’s unmarked or says “for show use only,” it’s not road-legal or MOT-safe. And if there are simply no CE markings - you are taking a risk.
If you have done a legal swap and it works well - please share your source and details.






