1st.. is it just me or does the base part of the bulb look a LOT smaller than the OEM D1s bulbs?

2nd.. Am I going to need an adapter to hook the D1s up to the stock harness, or is this a universal pinout for D1s?

3rd...what is the deal with the "gunk/sediment" inside the actual hollow part of the bulb (arc tube?) hard to tell in pics but it is only on 1/2 of the arc tube is this normal?...




Thanks all
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