Adaptive Lighting is a custom component for Home Assistant that intelligently adjusts the brightness and color of your lights 💡 based on the sun's position, while still allowing for manual control.

Download and install directly through HACS (Home Assistant Community Store)

By automatically adapting the settings of your lights throughout the day, Adaptive Lighting helps maintain your natural circadian rhythm 😴, which can lead to improved sleep, mood, and overall well-being. Experience cooler color temperatures at noon, gradually transitioning to warmer colors at sunset and sunrise.

In addition to its regular mode, Adaptive Lighting also offers a "sleep mode" 🌜 which sets your lights to minimal brightness and a very warm color, perfect for winding down at night.

🌈 Visualize Adaptive Lighting's settings with the 🌞 Adaptive Lighting Simulator WebApp 🌛

[ToC]

When initially turning on a light that is controlled by Adaptive Lighting, the light.turn_on service call is intercepted, and the light's brightness and color are automatically adjusted based on the sun's position. After that, the light's brightness and color are automatically adjusted at a regular interval.

Adaptive Lighting provides four switches (using "living_room" as an example component name):

• switch.adaptive_lighting_living_room: Turn Adaptive Lighting on or off and view current light settings through its attributes.
• switch.adaptive_lighting_sleep_mode_living_room: Activate "sleep mode" 😴 and set custom sleep_brightness and sleep_color_temp.
• switch.adaptive_lighting_adapt_brightness_living_room: Enable or disable brightness adaptation 🔆 for supported lights.
• switch.adaptive_lighting_adapt_color_living_room: Enable or disable color adaptation 🌈 for supported lights.

Adaptive Lighting is designed to automatically detect when you or another source (e.g., automation) manually changes light settings 🕹️. When this occurs, the affected light is marked as "manually controlled," and Adaptive Lighting will not make further adjustments until the light is turned off and back on or reset using the adaptive_lighting.set_manual_control service call. This feature is available when take_over_control is enabled.

Additionally, enabling detect_non_ha_changes allows Adaptive Lighting to detect all state changes, including those made outside of Home Assistant, by comparing the light's state to its previously used settings. The adaptive_lighting.manual_control event is fired when a light is marked as "manually controlled," allowing for integration with automations 🤖.

⚠️ Caution: Some lights might falsely indicate an 'on' state, which could result in lights turning on unexpectedly. Disable detect_non_ha_changes if you encounter such issues.

• ⚙️ Configuration
  • 📝 Options
  • 🛠️ Services
    • adaptive_lighting.apply
    • adaptive_lighting.set_manual_control
    • adaptive_lighting.change_switch_settings
• 🤖 Automation examples
• Additional Information
• 🆘 Troubleshooting
  • ❗ Common Problems & Solutions
    • 💡 Lights Not Responding or Turning On by Themselves
    • 📶 WiFi Networks
    • 🕸️ Zigbee, Z-Wave, and Other Mesh Networks
    • 🌈 Light Colors Not Matching
    • 💡 Bulb-Specific Issues
• 📊 Graphs!
  • ☀️ Sun Position
  • 🌡️ Color Temperature
  • 🔆 Brightness
  • While using transition_until_sleep: true
  • Custom brightness ramps using brightness_mode with "linear" and "tanh"
• 👀 See also
• 👥 Contributors
• Translating Adaptive Lighting

Adaptive Lighting supports configuration through both YAML and the frontend (Settings -> Devices and Services -> Adaptive Lighting, Adaptive Lighting -> Options), with identical option names in both methods.

# Example configuration.yaml entry
adaptive_lighting:
  lights:
    - light.living_room_lights

Note: If you plan to strictly use the UI, the adaptive_lighting: entry must still be added to the YAML.

Transform your home's atmosphere with Adaptive Lighting 🏠, and experience the benefits of intelligent, sun-synchronized lighting today!

All of the configuration options are listed below, along with their default values. The YAML and frontend configuration methods support all of the options listed below.

Full example:

# Example configuration.yaml entry
adaptive_lighting:
- name: "default"
  lights: []
  prefer_rgb_color: false
  transition: 45
  initial_transition: 1
  interval: 90
  min_brightness: 1
  max_brightness: 100
  min_color_temp: 2000
  max_color_temp: 5500
  sleep_brightness: 1
  sleep_color_temp: 1000
  sunrise_time: "08:00:00"  # override the sunrise time
  sunrise_offset:
  sunset_time:
  sunset_offset: 1800  # in seconds or '00:30:00'
  take_over_control: true
  detect_non_ha_changes: false
  only_once: false

adaptive_lighting.apply applies Adaptive Lighting settings to lights on demand.

adaptive_lighting.set_manual_control can mark (or unmark) whether a light is "manually controlled", meaning that when a light has manual_control, the light is not adapted.

adaptive_lighting.change_switch_settings (new in 1.7.0) Change any of the above configuration options of Adaptive Lighting (such as sunrise_time or prefer_rgb_color) with a service call directly from your script/automation.

⚠️ Note: These settings will not be written to your config and will be reset on restart of Home Assistant! You can see the current settings in the switch.adaptive_lighting_XXX attributes if include_config_in_attributes is enabled.

The following keys are disallowed:

- alias: "Adaptive lighting: reset manual_control after 1 hour"
  mode: parallel
  trigger:
    platform: event
    event_type: adaptive_lighting.manual_control
  variables:
    light: "{{ trigger.event.data.entity_id }}"
    switch: "{{ trigger.event.data.switch }}"
  action:
    - delay: "01:00:00"
    - condition: template
      value_template: "{{ light in state_attr(switch, 'manual_control') }}"
    - service: adaptive_lighting.set_manual_control
      data:
        entity_id: "{{ switch }}"
        lights: "{{ light }}"
        manual_control: false

- alias: "Adaptive lighting: toggle 'sleep mode'"
  trigger:
    - platform: state
      entity_id: input_boolean.sleep_mode
    - platform: homeassistant
      event: start  # in case the states aren't properly restored
  variables:
    sleep_mode: "{{ states('input_boolean.sleep_mode') }}"
  action:
    service: "switch.turn_{{ sleep_mode }}"
    entity_id:
      - switch.adaptive_lighting_sleep_mode_living_room
      - switch.adaptive_lighting_sleep_mode_bedroom

iphone_carly_wakeup:
  alias: iPhone Carly Wakeup
  sequence:
    - condition: state
      entity_id: input_boolean.carly_iphone_wakeup
      state: "off"
    - service: input_datetime.set_datetime
      target:
        entity_id: input_datetime.carly_iphone_wakeup
      data:
        time: '{{ now().strftime("%H:%M:%S") }}'
    - service: input_boolean.turn_on
      target:
        entity_id: input_boolean.carly_iphone_wakeup
    - repeat:
        count: >
          {{ (states.switch
              | map(attribute="entity_id")
              | select(">","switch.adaptive_lighting_al_")
              | select("<", "switch.adaptive_lighting_al_z")
              | join(",")
             ).split(",") | length }}
        sequence:
          - service: adaptive_lighting.change_switch_settings
            data:
              entity_id: switch.adaptive_lighting_al_den_ceilingfan_lights
              sunrise_time: '{{ now().strftime("%H:%M:%S") }}'
              sunset_time: >
                {{ (as_timestamp(now()) + 12*60*60) | timestamp_custom("%H:%M:%S") }}
    - service: script.turn_on
      target:
        entity_id: script.run_wakeup_routine
    - service: input_boolean.turn_off
      target:
        entity_id:
          - input_boolean.carly_iphone_winddown
          - input_boolean.carly_iphone_bedtime
    - service: input_datetime.set_datetime
      target:
        entity_id: input_datetime.wakeup_time
      data:
        time: '{{ now().strftime("%H:%M:%S") }}'
    - service: script.adaptive_lighting_disable_sleep_mode
  mode: queued
  icon: mdi:weather-sunset
  max: 10

For more details on adding the integration and setting options, refer to the documentation of the PR and this video tutorial on Reddit.

Adaptive Lighting was initially inspired by @claytonjn's hass-circadian_lighting, but has since been entirely rewritten and expanded with new features.

Encountering issues? Enable debug logging in your configuration.yaml:

logger:
  default: warning
  logs:
    custom_components.adaptive_lighting: debug

After the issue occurs, create a new issue report with the log (/config/home-assistant.log).

Adaptive Lighting sends more commands to lights than a typical human user would. If your light control network is unhealthy, you may experience:

• Laggy manual commands (e.g., turning lights on or off).
• Unresponsive lights.
• Home Assistant reporting incorrect light states, causing Adaptive Lighting to inadvertently turn lights back on.

Most issues that appear to be caused by Adaptive Lighting are actually due to unrelated problems. Addressing these issues will significantly improve your Home Assistant experience.

In case lights are suddenly turning on by themselves, this is most likely due to the light incorrectly reporting an "on" state to Home Assistant, leading to an undesired Adaptive Lighting action. To prevent adapting in cases where the state of the light is suddenly "on" and only adapt if there is an associated light.turn_on service call, set detect_non_ha_changes: false.

Ensure your light bulbs have a strong WiFi connection. If the signal strength is less than -70dBm, the connection may be weak and prone to dropping messages.

Mesh networks typically require powered devices to act as routers, relaying messages back to the central coordinator (the radio connected to Home Assistant). Philips lights usually function as routers, while Ikea, Sengled, and generic Tuya bulbs often do not. If devices become unresponsive or fail to respond to commands, Adaptive Lighting can exacerbate the issue. Use network maps (available in ZHA, zigbee2mqtt, deCONZ, and ZWaveJS UI) to evaluate your network health. Smart plugs can be an affordable way to add more routers to your network.

For most Zigbee networks, using groups is essential for optimal performance. For example, if you want to use Adaptive Lighting in a hallway with six bulbs, adding each bulb individually to the Adaptive Lighting configuration could overwhelm the network with commands. Instead, create a group in your Zigbee software (not a regular Home Assistant group) and add that single group to the Adaptive Lighting configuration. This sends a single broadcast command to adjust all bulbs, improving response times and keeping the bulbs in sync.

As a rule of thumb, if you always control lights together (e.g., bulbs in a ceiling fixture), they should be in a Zigbee group. Expose only the group (not individual bulbs) in Home Assistant Dashboards and external systems like Google Home or Apple HomeKit.

⚠️ If you control lights individually, manual_control cannot behave correctly! If you need to control lights individually as well, use a Home Assistant Light Group.

Bulbs from different manufacturers or models may have varying color temperature specifications. For instance, if you have two Adaptive Lighting configurations—one with only Philips Hue White Ambiance bulbs and another with a mix of Philips Hue White Ambiance and Sengled bulbs—the Philips Hue bulbs may appear to have different color temperatures despite having identical settings.

To resolve this:

1. Include only bulbs of the same make and model in a single Adaptive Lighting configuration.
2. Rearrange bulbs so that different color temperatures are not visible simultaneously.

These lights are known to exhibit disadvantageous behaviour due to firmware bugs, insufficient functionality, or hardware limitations:

• Sengled Z01-A19NAE26
  • Unexpected turn-ons: If Adaptive Lighting sends a long transition time (like the default 45 seconds), and the bulb is turned off during that time, it may turn back on after approximately 10 seconds to continue the transition command. Since the bulb is turning itself on, there will be no obvious trigger in Home Assistant or other logs indicating the cause of the light turning on. To fix this, set a much shorter transition time, such as 1 second.
  • Heat sensitivity: Additionally, these bulbs may perform poorly in enclosed "dome" style ceiling lights, particularly when hot. While most LEDs (even non-smart ones) state in the fine print that they do not support working in enclosed fixtures, in practice, more expensive bulbs like Philips Hue generally perform better. To resolve this issue, move the problematic bulbs to open-air fixtures.
• Ikea Tradfri bulbs/drivers (and related Ikea smart light products)
  • Unsupported simultaneous transition of brightness and color: When receiving such a command, they switch the brightness instantly and only transition the color. To get smooth transitions of both brightness and color, enable separate_turn_on_commands.
  • Unresponsiveness during color transitions: No other commands are processed during an ongoing color transition, e.g., turn-off commands are ignored and lights stay on despite being reported as off to Home Assistant. The default config with long transitions thus results in long periods of unresponsiveness. To work around this, disable transitions by setting transition to 0, and increase the adaptation frequency by setting interval to a short time, e.g., 15 seconds, to retain the impression of smooth continuous adaptations. Keeping the initial_transition is recommended for a smooth fade-in (lights are usually not turned off momentarily after being turned on, in which case a short period of unresponsiveness is tolerable).

These graphs were generated using the values calculated by the Adaptive Lighting sensor/switch(es).

Notice the values of brightness_mode_time_light and brightness_mode_time_dark in the text box.

Check out the interactive webapp on https://basnijholt.github.io/adaptive-lighting/ to play with the parameters and see how the brightness changes!

• Sleep better with Adaptive Lighting in Home Assistant by Florian Wartner on 2023-02-23 (blog post 📜)
• Automatic smart light brightness and color based on the sun by Home Automation Guy on 2022-08-31 (YouTube video 📺)
• Adaptive Lighting Blew My Mind in Home Assistant - How to set it up by Smart Home Junkie on 2022-06-26 (YouTube video 📺)

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