1300 watt motor for the Felix, 175 watts for the PN head.
As for the D4, the UK reviews that exist on it in written form do show average buyers compared to Roger and others (RichardLee also on You Tube) who are collectors and have done video reviews on it.
The D4 reiterates my personal feeling for it - I don't like it - yes, it has that Felix ET-1 power head which is great but the hose becomes more difficult to manage as time goes on because of the embedded cord running through it and doesn't always turn at the top behind the handle despite it having a restricted swivel.
The suction only models are far more flexible and lighter to pull along with the machine behind not to mention the light weight main floor tools on the front.
I had the same issue with my K3 Premium, which uses a shorter hose, but still the same problem happens. Even after SEBO sent out a new and improved hose, the hose still feels heavier because of the embedded cord and it doesn't always turn the way I want my hand to go when holding onto the handle.
Its all very well having an electronic suction control handle on the SEBO cylinders, and some members like models such as the K3 Vulcano that offers that alone - but without the power nozzle floor head I find the whole concept just as useless - dont get me wrong - I loved it when I first got it, but after a while the hose really got on my nerves.
The old excuse that "you don't have to bend down to change the suction setting," gets forgotten easily when you still have to bend down to pull the cord for cord rewind or take a tool.