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humming..? i dont think that's normal, if it is, my lights are messed up because i dont get humming. I dont think i do. and...you want to post pics of 8000k?
"a wierd humming sound" is normal for HID, when you turn them on.
it makes the sound for 1.5~2 seconds, as the light glows from green -> blue -> light blue (in 8000 HID case).
don't worry about it.