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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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^ That answered my question.
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Originally Posted by striker_1818
wait what?
D2S = Projector HID
D2R = Reflector/Reflective HID
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I knew that.
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Originally Posted by striker_1818
The design is different, size, etc all tested from the manufacturer. Even if it may look the same at first glance, it is different. Every reflector is made to handle its respective lumens coming from its corresponding bulbs for which they're designed for.
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Then this begs the question: what can we do to the OEM reflector housing to make an effectively glare-free HID reflector? Leanangle talked about the focal point location differential between HID and halogen reflector designs. Is is possble to mount a D2R in our stock housing farther back in the housing to change the focal point of the reflector?