Siri Cant Change Lights to White

Interesting, it seems the manufacturer uses two sets of LEDs in one light and depending on what color temperature it'll drive one or the other (or perhaps both).

I don't think I've seen such a thing before.

As for your actual issue: I've heard of external solutions such as Home Assistant and Homebridge, but I'm not intimately familiar with them.

The way Siri handles requests significantly depends on what the manufacturer exposes to the HomeKit API and how they do it, at least under normal circumstances.

With DIY solutions such as Home Assistant and Homebridge these things have to be manually configured, often with a lot of trial and error.

A quick glance at Home Assistant's documentation suggests that it doesn't support HomeKit and specifically Siri in the traditional way out of the box.

Instead it relies on Shortcuts via it's app and Siri executing these shortcuts based on the voice command set for those shortcuts, which, for the purposes of the topic at hand, is an entirely seperate system.

That's not to say that it's impossible to have a more native HomeKit/Siri experience, at first glance people have found ways to make that happen, seemingly levering Homebridge in some cases to do so.

However, now you're venturing into the territory of workarounds for the workaround (i.e., Home Assistant) and that level of tweaking/tinkering tends to go beyond the scope of this forum or put differently; beyond the scope of most people's expertise here.

Nevertheless, I hope I can at least point you into some directions where you might have better luck getting help by providing the links below.

• Home Assistant's own forum here;
• Home Assistant Discord server;
• Home Assistant subreddit;
• HomeKit subreddit;
• HomeKit Discord server;
• HomeKit Automation subreddit;
• HomeKit Automation Discord server.

What Siri can or can’t do or understand depends a bit on how the manufacturer has implemented HomeKit support and how they expose information.

Can you provide a little more information on your setup?

What brand and model are your smart bulbs?

Is there a bridge involved?

Also, do I understand it correctly in that you’re saying that your bulbs essentially have two modes?

White and color instead of white simply being one of the color options in a general color mode?

You're more than welcome 😊!

If you do happen to resolve your issue, whether with the aid of the provided links or otherwise, be sure to report back!

Who knows, perhaps one day someone in a similar situation as yours might stumble upon your post and would be grateful to learn how you've solved it.

If they don’t support or “work with HomeKit” Siri might not help with that. The photos weren’t helpful. Not all lights support cool. Even though it may appear to you that you are adjusting it to brighten up. Plain white ambience smart bulbs can’t really do “cool” as there is no blue in them. There’s only various shades of yellow or “warm”. Only my coloured lights can go very cool. I use Philips Hue. What kind of bulbs are they?