That's a sign of an electronic component failing. Could be circuit board or LED itself, usually circuit related. You really can't trust them and assume it'll fail sooner than OE bulbs.
There is so much bad stuff being sold, its hard to filter out the quality stuff. Unless its a vendor that stands by their product with some sort of warranty.
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2012 X5 xDrive35i Sport Activity - Alpine White - M Sport Package
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