Tweakers Australia has posted a comparison review between the GlobalWin WBK38-II against the WBK68-II
Both models performed very well in all tests, and there is a good indication how the fans speed can really effect temperatures once again. I like my fans quiet, and with the WBK68-II you can be assured of good performance while keeping the noise levels down. The 38 on the other hand offered up to 4C degrees of additional cooling when compared to it's quieter brother, but in my opinion the noise outweighs the performance.Read more