10kV Flyback Transformer, 2W possible?

[CognitiveNet]

Is it possible to build/purchase a 10kV (nominal) flyback transformer which runs on about 2 Watt or less?

 

[Carl Pugh]

The flyback has to charge the stray capacitance every cycle.
If you operate at a low enough frequency, then 2 watt is possible. (practical?)
If you want DC output, it may be possible to have rectifiers for each secondary winding layer and obtain 10 kv DC.