[Matt0090]

Hi everyone.
I'm having a bit of a problem. I've had an accident not long ago and among other things i broke the right adaptive bi-xenon headlight. So i bought a used one.
I've had Osram cool blue intense xenarc d1s bulbs which were pretty good, blue light with long visibility. But since i've put the new headlight, the visibility is terrible, it's worse than some halogen bulbs. I've put the osram bulb i've had in the broken headlight because it wasn't broken. I have to say it was exposed to rain and moisture for a week or so.
I'm interested if anyone knows what causes the bulb to change color and power so drastically. Is bulb the problem, or is it maybe the balast on the used headlight, or maybe just this used headlight needs polishing?
Thanks everyone.

You can see the difference in these pics.



Left (good one)

Right (bad one)

[Serf27]

The projector glass on some lights can become cloudy.
I’m not sure why.
I have been able to clean them by wrapping a small piece of micro fiber towel around a screw driver and taping it to the screw driver, putting the screw driver into the xenon bulb hole cleaning the glass.

Maybe the glass on the “new” light is foggy?

The lens does look a bit more pitted than your other light, but shouldn’t cause an issue.

If your ballast on the old light is good, I’d swap that in too.

[Matt0090]

I will sure take a look on the projector glass to see if it needs to be cleaned.
Thanks for the advice.