So far I had 2x8x100Mb Switches who together consume 7.2W. And the 800MB test file was copied to 1:13 Min from one computer to another.
The TL-SG1016D consumed in this constellation 8,9W. (800MB will be copied to 13sec)
The Zyxel GS1100-16 consumed in this constellation 3,7W. (800MB will be copied to 13sec)
Due to the extreme publicity about the great power-saving features of the TL-SG1016D I am very disappointed with the outcome.
Therefore, the Zyxel offers form factor and power consumption, the higher price is compensated soon about the saved electricity. Gigabit they can both (when copying the test file I could not tell the difference)
PS: Fan was in any of the switches so both are silent