The MGF Register Forums

I bought a led bulb for my outside light the other day the old one was 28w but I could only get 18w in the led but it is twice as bright so would it be fair to say led in the head lights would work the same and what do I go for Thanks

The same problems for LED bulbs as for HIDs I would imagine - and in some ways worse: unless they've got improved H1(MGF) H7(MGTF) LED bulbs than the type I've seen, the focal point of these bulbs is nowhere close to the focal point of a standard halogen bulb, meaning that the lamp reflector will be the wrong shape and lead to a widely dispersed light beam... Just wondering which bulb you're planning to use?






Also, don't the LED units run much hotter than HIDs? If so, you've lost one of the suggested advantages of HIDs which run cooler - although this is more of an issue for the MGF rather than the superior TF lamp design.

Also check that your bulbs are E-marked. To my surprise, these are available...

If you've got them, will be interested to hear your opinion of them!

I agree with Rob. The LED lights (like HID's) have a different filament (I know LED isn't a filament, but a leadframe) and therefore produces a beam different from the halogen light.
The lenses and reflectors are specifically designed for halogen lamps and produce a legal beam pattern. So any other bulbs will producing a different partern and therefore may be illegal and could be a potential MOT Failure.
I think that the "E" mark, means that they are legal for sale, but not necessarily for fitments and use because several countries have different legislation.

Led bulbs aren't suitable for headlights, unlike hid the focal point of the led is off what it should be inside the reflector so there is no defined beam.

But some of the latest models on sale do have LED headlamps. Don't know what type of bulb is used or the lamp configuration to get the beams.

Tipper wrote:But some of the latest models on sale do have LED headlamps. Don't know what type of bulb is used or the lamp configuration to get the beams.

that is so but the light is built to use the led bulbs which will be different from after market ones.

Yes, I agree with you Robbie: the reflector design will be optimised to be used with whatever LED bulb design is used in an OEM product. If there are LED projectors designed for use with a specific LED bulb (I haven't looked, but there are projector units available with HID bulbs, so may be they exist?), that may be the unit to go for.