Adaptive Lighting

Feature Introduction

Color temperature is a unit of measurement that indicates the color composition in light and represents the overall spectral characteristics of a lighting source. At sunrise, the color temperature is lower, between 2000-3500K; in the morning, it rises to 4000-4500K; then at midday, it reaches above 5000K, while during evening and sunset, the color temperature drops to levels similar to morning and sunrise respectively.

Adaptive Lighting is a new feature released by Apple HomeKit in iOS 14. This feature automatically adjusts the color temperature curve of home lighting by simulating the sun's color temperature changes from sunrise to sunset, adapting to the body's varying needs for light color temperature at different times.With Adaptive Lighting, users wake up to warm, cozy tones in the morning; at noon, the light gradually adjusts to cooler tones to maintain focus; and in the evening, it removes blue light to relax emotions and promote sleep.

How to Set Up?

Some lights' color temperature can be adjusted between cool blue tones and warm yellow tones. You can set supported lights to automatically adjust their color temperature throughout the day. Warm light when waking up, cooler light at noon for maintaining alertness and focus, and removal of blue light in the evening to induce sleepiness.For lights that support Adaptive Lighting, follow these steps.

1. Tap the light tile to show controls.

   You can also press and hold the tile, then select “Accessory Settings.”

2. Tap , then turn on “Adaptive Lighting”.

Note: “Adaptive Lighting” requires a home hub, such as a HomePod speaker.

Official Introduction: https://support.apple.com/zh-cn/guide/iphone/iph0a717a8fd/17.0/ios/17.0

Requirements

1. Brightness value, color temperature value, and switch status must be independent and not affect each other. For example, when the light is off, setting the color temperature will only change the color temperature value without turning on the light. Adjusting brightness will only change the brightness value without turning on the light.
2. The device must support power-off memory. When the device is powered on again, its status needs to be restored to the state before power loss. Ensure brightness and color temperature values match those before power loss.
3. For lights that support both RGB and color temperature, if the color temperature value changes after modifying RGB values, the color temperature value must be actively reported. Similarly, if modifying the color temperature causes RGB values to change, the RGB values must be actively reported.After modifying color temperature, saturation, or hue values, the Adaptive Lighting feature needs to be turned off.
4. The gateway and child devices must be compatible with both ‘move to level with on/off' and ‘move to level without on/off' commands.
5. The actual color temperature of the light must not deviate more than 5% from the set value.
6. Color tolerance SDCM<5SDCM.