While I'm waiting for the last responses around the reader test for the new Hue Wall Switch Module, I unfortunately have bad news for you: Availability will remain poor in the coming weeks. Currently, the new accessory is sold out in many countries in Europe, if at all, only a few single packs are available
At this point, it's not likely that this situation will change in the near future – and if it does, it would be a welcome surprise. Apparently, Philips Hue has been surprised by the success of the Wall Switch Module – and is now unable to produce more in the near future.
What's interesting in this regard: Unlike many other products from Philips Hue, the Philips Hue Wall Switch Module is not manufactured in Asia, but in Germany. Unfortunately, I cannot tell you at this point to what effect Corona might play, for example regarding the availability of the required chips.
But what I can say in any case: I will keep an eye on the story and get back to you as soon as the wall switch module is available again. Should you discover it before me in the online store of Philips Hue, I am of course happy about a short mail.