Fairland IPHCR15 pool heatpump (matches others above, but allows control of heat/cool modes while others seem to be fixed to auto only)
these seem to use a small number of common controllers with minor variations, and many other Pool heatpumps will work using the above configurations. Report issues if there are any differences in presets or other features, or if any of the "unknown" values that are returned as attributes can be figured out.
Somgam double wall switch
Simple switch - a switch only, can be a fallback for many other unsupported devices, to allow just power to be switched on/off.
Simple switch with timer - a single switch and timer, will probably work for a lot of smart switches that are not covered by the more advanced configs above.
Simple switch with timer v2 - the above with timer moved from dp 11 to 9, confirmed with a Nexxt 220V smart switch.
Simple triple switch - three switches in a single device, tested with Somgam 3 gang wall switches.
Simple quad switch - four switches in a single device, tested with Somgam 4 gang wall switches.