A:Answer I'm not entirely sure I understand the question, but I will answer what I think it is. My apologies if I do not answer what you meant.
1. Light switch placement -- It does not matter where the original light switch for your lights is. In addition, if you have a standard light switch (ON/OFF switch), neither Alexa nor the remote will control that. To use your Philips Hue lights as smart lights, the standard light switch must always be set to ON, even when you want the light off.
2. Can you use Alexa and the remote for the same lights? -- If you have your lights synced to your Alexa, any lights that you set this remote for can still be changed by Alexa. This gives you another option on how to turn on/off your lights. The remote makes it easier to do other things, like dim the lights and set a new scene (such as switch from bright yellow light to soft white light).
3. Do obstacles or distance matter? -- I've tested my bedroom lights from every corner of my house that has WiFi, and I've been able to control the lights in my room. I'm fairly certain it uses your WiFi to control the lights, but either way obstacles and doorways posed no problem for me.
