DDM HID Slim ballast kit question

[Vidiot]

So I just received my DDM 35w HID slim ballast kit and there is a small bag with 2 red o-rings inside.
Any idea what they are for?

 

[Vidiot]

 

[Rich-PMS]

Most likely to seal the bulb n housing

 

[Slo_Teggy]

Now that I know what you're talking about, they do look like just a bulb gasket. Do they perfectly match up with the bulb? either way I wouldn't stress if you didn't find a use for them. You don't NEED them to run HID's

 

[Vidiot]

Most likely to seal the bulb n housing

There was a small gasket near the bulb,near the threads.
So not sure if its a replacement if you want a tighter fit or not.