[tzs]

Is KNX affordable? I did some searching to see how to control Philips Hue lights via KNX, and found something called an "ise Smart Connect KNX HUE" for this. I found a few sites online selling this, all in Europe.

Most would not show me a price without me first creating an account and logging in, but I did find one German site that would show me a price, which after converting Euros to USD, came out to a little over $300. I also found a UK site that would show a price. That, after Pounds to USD conversion, was over $500.

I did a little searching to try to find out how lights are handled in KNX without bridging out to some completely different system like Hue. All I was able to find was lighting fixtures with KNX control built in. I didn't see bulbs with it built in.

Does this mean that if someone without any home automation decides that they want a couple of smart lights, to do it purely with KNX that have to replace some light fixtures?

That's not how most people in the US add some smart lights. Most here do it by buying bulbs that screw into fixtures meant for regular bulbs, and implement the smart stuff in the bulb itself. There is no need to replace fixtures (which you may not be allowed to do if you are renting).

[chriswwweb]

KNX is a standard not a brand, hence you can just say KNX costs 10 euro or 1000 euro. KNX via an adapter can control regular lights, at least on/off not sure about dimming. But KNX is best used with compatible lights, which means you need special lights and different cables. I think in my appartment there are two cables, I assume one is for control and the second is the regular power source. For example some companies that in my opinion have good products are BAP Tech (https://www.bab-tec.de/), Gira (https://www.gira.com/en/gebaeudetechnik/systeme/knx-eib_syst...), Jung (https://www.jung.de/en/820/products/technology/knx-system/) ... to find companies near you I would recommend using the official KNX website: https://www.knx.org/knx-en/for-professionals/community/manuf.... the system for the lights is called DALI (https://en.wikipedia.org/wiki/Digital_Addressable_Lighting_I...), for example OSRAM has a Dali/KNX website here with more information: https://www.osram.com/ds/highlights/knx/index.jsp ... to find prices I would recommend using a website like https://www.eibmarkt.com/ (set the country to United States and the currency to US Dollar)