DDM Tuning HID Fog Ballast Humming?

[AZdevil09]

Curious if anyone has ever had any issues with DDM HID Fog ballasts humming? I hooked mine up and tested for the first time. And both have a high pitch humming coming from both ballast. Thoughts?

Also, the plug housing they used has the incorrect spacing for the stock harness by a couple of mm's.... kind of regretting going with DDM at this point.
Thanks

 

[Renhalt]

I had a bad experience with a kit for my motorcycle, I don't know about for cars but their customer service sucks. As far as a humming noise I don't know as I have never noticed any noise from mine what so ever. I have a pair of volt digital slims as well as a new one in the box. I have been running them with morimoto bulbs for about two years when one went out, I bought a new ballast just in case due to the work involved to remove it in the event it was a ballast rather than the bulb. In short, I purchased a set of the new XB morimoto bulbs and the volt ballast would not fire them so I ended up buying a set of the morimoto ballast and igniters to finish the job. If you want to try the volt ballast, I will sell you all 3 for $35.00 plus shipping, I'm just trying to get the money back that I paid for the new ballast as HID planet charges return shipping and a 20% restock fee. If not, I would highly recommend going to Retrofit Source and buying the morimoto hid kit and be done with it. I hope this helps!