How do I optimize bulb or shield placement in a projector?
This is mostly applicable to halogen projector units upgraded with HID bulb. The idea here is to make 30-50% of hotspot rise below cutoff line. Pictured beam would be a typical E-code or harmonized pattern. The dotted circle represent the hotspot. Both bulb and vertical shield hight will affect outcome. Moving bulb or shield too much away from default position will have other negative beam consquences. To be able to see the circle better, use one or two pairs of sunglasses. This will increase contrast between hostpot and surrounding light.
