Suggestions for electric heater valves? (Not electronic thermostats, temperature gets measured with separate sensor)

Hardware
1

I’m looking for suggestions for electronic/electric heater valves for german/european style radiators, with

  • no display, no thermostat. Plain control of the amount of water which streams through the radiator from fully closed to fully open
  • 24 Volts DC max.
  • controllable through Home Assistant (no problem with ESP-based custom built, but preferably an off the shelf Wifi or LoRa solution)
  • pleasant appearance over but ugly design preferred
  • perfectly fine with Chinese no-name solution from e.g. AliExpress, as long as they work reliably

Anyone?

2

If I understand correctly, these electric NC valves are used for underfloor heating, not radiators, and have only 2 states: closed (unpowered) and opened (powered, which consumes 2 watts). Nothing inbetween, which isn’t suitable for my radiator application.

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Looks like it uses a magnetic actuator. I need however something motorized, which can be adjusted from 0 to 100% valve opening. Such a solution also has the advantage that it doesn’t consume power to maintain its current state.