I have just stared down this particular rabbit hole this morning, my builder is about to install two roof lights in my kitchen extension, I shall specify electric and plan to work with the electrician to steer him in the right direction regarding automation wiring however the mix of automation gateways is confusing. I assume KLF 200 is replaced by KIG 300? They appear to both be Wifi gateways and the KLF 200 no longer appears in the products list on velux.co.uk.
Perhaps veering slightly off topic, do the Velux windows and blinds work with any third party switches, I’d ideally like to replace the supplied single wall box single gang faceplates with one single width wall box dual gang switch if possible.
Edit: It seems a single KLI 311 wall switch can control multiple windows. Apologies for a pointless question, I had to look in the accessories section of the web site.
Edit 2: I think KIX300 is KIG300 bundled with environmental sensors, listed as “Velux Active with Netatmo” on velux.co.uk.