for sure you know the word for word translation of the phrase for this reason I paste the following results for white lable from wikipedia for you to deciede the meaning by your self:

A White label record is one with a plain label sticker, usually produced in small amounts.
The Virgin Interactive computer games company re-published some of its once-successful games in a "white-label edition", sometimes containing bonuses or newer patches of the game.
A White label product is a product produced by one company that is then rebranded by other companies to make the product appear as if they created it.
A White label ATM in Canada is one that is not operated by a bank or credit union.
White Label is an album by Venetian Snares.
White Label Music (WLM). Windsor based electronic music label.
White Label Records. A former Australian record company which was an offshoot of Mushroom Records.

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