Product review (1 stars): Bought two, one didn't work at all!
One of the two I purchased drew NO current when I powered it.  I returned it to Amazon for a refund.  The second device did draw current but it was less than half the published spec and the device barely cooled the circuit - the device doesn't perform any where near the published spec.

I kept the second one mainly because it worked just well enough for this application and I didn't want the mess and hassle of cleaning off the thermal compound to return it.

Given this experience and the problems reported by others, I would recommend buying a reliable device from a mfr like Tellurex or Melcor.  I would definitely NOT buy one from this supplier.