right headlight is out and i changed all my fuses and did whatever i can and it still doesn't work.in order to change the whole thing,do i have to buy the igniter a or can i just order this http://www.hidextra.com/d2r-6000k-hi...b90bf64044401f and change the whole thing?cus i think my oem ballast thats out pls help

thank you

 

swap the bulbs left to right and see if the problem follows the bulb
Do you remember a pink tint to light at startup recently?
If so- new bulbs are the solution
stock color is 4300k, 5000 has more blue but good white on road
6000 more blue and loses white on the road-not good for dark backroads!
stay with 4300 or 5000

If you had moisture inside the headlight lens its probably leaked out onto the ballast and killed it
See auto recycler (junkyards) or aftermarket for ballast and DIY section for replacing seal