Currently, I have 55w 6000k DDM tuning HID's in the stock reflector housing. I have decided to purchase the halo projector lenses because of the glare the bulbs have been producing. I understand that the projector housings require an H9 bulb, and I also understand that the H4 and H9 bulbs can just be swapped out, connected to the same ballasts. I intend to stick with a 55w 6000k bulb, again, just swapping out H4's for H9's. My questions pertains to this: I have been looking all over DDM Tuning's website and for the life of me cannot find the H9 bulbs (if somebody can guide me that would be great), but on the website I will be purchasing the projectors from, I found a pair of H9 6000k bulbs, same connectivity. Do you think it would be ok for me to run a different company's bulb on the DDM tuning ballasts, or should i call DDM and try to get their bulbs? Thanks!