Remember that you should legally inform your insurance company of any modifications and that the heat sinks on LEDs do get HOT.
Advice copied from another forum from someone who knows about these things.
Quote:
DO NOT FIT THESE.
I work in light,
The reflector (or headlight bowl) is designed for a particular lamp source, is the lamp source size, position, and photo metric output. Change any of these factors and you will alter the beam spread.
Whilst the HIDs maybe brighter on the retrofits, the reflectors and lenses are not designed for these, so the cut off angles are not there. The rules relating to the beam pattern of car headlights have been around for a while, are well documented, and developed for a reason.
The LED retrofits will be even worse, as they relly upon multi point source emission.
Don't be selfish and fit these just so that YOU can see better, you will be causing glare to other road users. Glare is as disabling as looking at the sun. Please don't do it.
it's an error to judge a beam pattern solely by its cutoff (which is all an MOT checks for) In many lamps, especially the projector types, the cutoff will remain the same regardless of what light source is behind it. Halogen bulb, HID capsule, cigarette lighter, firefly, hold it up to the sun—whatever. That's because of the way a projector lamp works. The cutoff is simply the projected image of a piece of metal running side-to-side behind the lens. Where the optics come in is in distributing the light under the cutoff. And, as with all other automotive lamps (and, in fact, all optical instruments), the optics are calculated based not just on where the light source is within the lamp (focal length) but also the specific photometric characteristics of the light source...which parts of it are brighter, which parts of it are darker, where the boundaries of the light source are, whether the boundaries are sharp or fuzzy, the shape of the light source, and so forth.
And to be honest These company's are so stupid as to offer these without doing proper investigation (polar curve and photometric tests........or a simple MOT) They even state on the website "very effective at moving traffic on the nurbergring"......... Well the reason for that is that you are glaring all the drivers in front, in their rear view mirrors, blinding them,so they would rather pull over than crash because of their stupid headlight conversion.
