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Originally Posted by leenangle
HID reflector has a different focal point than a Halogen reflector.
the light emitted from the HID bulb is in a different location from the light emitting filament on the halogen.
Notice on the H4 bulbs that the low beam is in a different location from the High beam filament. You can switch the beam pattern by simply relocating the light source.
Its pure geometry.
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hey dude what is the different with the new headlights lexus is making...
with leds
I still don't understand why a multiple-led based headlight would produce more light than an HID projector based headlight?