As mentioned in other reviews, I can also confirm that the power supply is buzzing. However, this may be due to any interference in my apartment. In addition, this sums is then but not so loud that you can hear it (you really have to be very close to the power supply).
Negative but I noticed that the lights flicker in some colors a bit.
I also brought my two lamps that are mounted left and right on your TV. I run the two lamps with the two supplied power packs in the Color Swap mode, notice that the lights are not synchronized (1 lamp runs noticeably faster). However, I was able by means of a 3.5 mm jack extension cable (male-female, 4-pole!) Remedy by I went to the power supply in the first lamp and the plug at the other end connected via extension to the socket of the second lamp have. Now the lamps run - thanks to use only an AC adapter - synchronously.
