This article explains how to control your smart lighting system using your iPhone and Siri, and Apple's HomeKit IoT platform.
Control lights with your phone – (Smart Life App)
While smart light brands typically have their own iOS apps, it’s easy and convenient to use Siri’s voice control functionality to control your lights. Here’s how to set it up.
The first step is to make sure your smart lights are connected to your Home app.
Go to the Home tab, if you don't start there.