I tested this pump in my system today. I was a bit scared at he begining about overheating, but it did a good job!
Here are the results compared to my regular pump, a Shott 11.10.
first number is my 12V model
Pump power in watts:_________________4/12
In system waterflow (LPM)___________2.1/4.7
CPU-Water delta temp idle____________11/9
CPU-Water delta temp BurnK7_________18/16
This is amazing! despite the huge difference in power and flowrate my temps are only 2ÂșC worst; not bad at all!
more important for me is noise. My other pump makes a slightly anoying rattle some days (I guess it depends on the turning direction it choose on startup), and this one was impossible to hear.
I found this quite a success, given that I started testing ready to unplug the power in case of high temps.