Post by djm16 on Oct 15, 2017 3:55:54 GMT
"Does it do the same with halogen bulbs ?"
H4 halogen bulbs have their shield nominally on the midline, so in the absence of a prism, the dipped beam will project a flat line with light below. You can also tell this by looking at the light projected on the back of the headlamp glass - there is a flat line with an H4 bulb. The prism (on most glasses) is below this line and to the drivers side.
My H4 LEDs also have the rotating ring setting. Had they been made properly in the first place, this would be un-necessary.
Everything is much clearer (geddit) if like me you have a test lamp unit with no front glass.
Mostly the kickup is not a problem except when over-taking. Then the dipped beam is blinding to the car in the near-side lane.
H4 halogen bulbs have their shield nominally on the midline, so in the absence of a prism, the dipped beam will project a flat line with light below. You can also tell this by looking at the light projected on the back of the headlamp glass - there is a flat line with an H4 bulb. The prism (on most glasses) is below this line and to the drivers side.
My H4 LEDs also have the rotating ring setting. Had they been made properly in the first place, this would be un-necessary.
Everything is much clearer (geddit) if like me you have a test lamp unit with no front glass.
Mostly the kickup is not a problem except when over-taking. Then the dipped beam is blinding to the car in the near-side lane.
(oops!)