The tape on the ones i received from dx.com is made by 3M and once you stick it on, it better was the right position. I wonder if it's generic tape or something special with better heat conduction property.

dx.com also has heatsinks made of copper, for a higher price of course. Might be interesting when you need to conduct heat away at a faster rate.

BTW, the ebay link says in the fineprint, they don't ship to Germany, UK, USA and other failed nations like Lybia, Kazakhstan and Liberia. :lol: