DrewE wrote:
Daniel Stern is an expert on automotive lighting, and he has written this about conversion bulbs for turning halogen (xenon) headlights into HID headlights. Nearly all of the basic concerns are the same for LED conversion bulbs, despite the technical differences between HID and LED (and incandescent) lights.
That website offers a great explanation and advice on why you shouldn't mess with your headlights.
However, it's likely to fall on deaf ears. Folks will continue to mess with their headlights, just like folks tow overloaded, speed while towing, etc.