home-assistant.io/source/_integrations/light.markdown

title, description, ha_category, ha_release, ha_quality_scale, ha_domain, ha_codeowners, ha_integration_type

title	description	ha_category	ha_release	ha_quality_scale	ha_domain	ha_codeowners	ha_integration_type
Light	Instructions on how to setup your lights with Home Assistant.	Light	pre 0.7	internal	light	@home-assistant/core	entity

This integration allows you to track and control various light bulbs. Read the integration documentation for your particular light hardware to learn how to enable it.

{% include integrations/building_block_integration.md %}

State and attributes of a light entity

Light {% term entities %} can have the following {% term states %}: on or off. The list of available attributes depends on the {% term device %}. Refer to the integration documentation of your light.

Three lights with differents states: `on`, `off`, or `unavailable`.

Default turn-on values

To set the default color, brightness and transition values when the light is turned on, create a custom light_profiles.csv, normally located in the default configuration folder where you find {% term "configuration.yaml" %}.

The light_profiles.csv has to have a header. The format of the header is:

id,x,y,brightness,transition

The field transition is optional and can be omitted.

The .default suffix should be added to the entity identifier of each light to define a default value, e.g., for light.ceiling_2 the profile field is light.ceiling_2.default. To define a default for all lights, the identifier group.all_lights.default can be used. Individual settings always supersede the all_lights default setting.

{% note %} If a light entity is in the on state, the default profile brightness will only be applied if it is called in the action data attribute profile, like any other named profile. The transition attribute will be applied for all light.turn_on, light.toggle, and light.turn_off actions, unless specified otherwise in the action data. {% endnote %}

Action light.turn_on

Turns one light on or multiple lights on using groups.

Most lights do not support all attributes. You can check the integration documentation of your particular light for hints, but in general, you will have to try things out and see what works.

Data attribute	Optional	Description
entity_id	no	String or list of strings that point at entity_ids of lights. To target all lights, set entity_id to all.
transition	yes	Number that represents the time (in seconds) the light should take to transition to the new state.
profile	yes	String with the name of one of the built-in profiles (relax, energize, concentrate, reading) or one of the custom profiles defined in light_profiles.csv in the current working directory. Light profiles define an xy color, brightness and a transition value (if no transition is desired, set to 0 or leave out the column entirely). If a profile is given, and a brightness is set, then the profile brightness will be overwritten.
hs_color	yes	A list containing two floats representing the hue and saturation of the color you want the light to be. Hue is scaled 0-360, and saturation is scaled 0-100.
xy_color	yes	A list containing two floats representing the xy color you want the light to be. Two comma-separated floats that represent the color in XY.
rgb_color	yes	A list containing three integers between 0 and 255 representing the RGB color you want the light to be. Three comma-separated integers that represent the color in RGB, within square brackets.
rgbw_color	yes	A list containing four integers between 0 and 255 representing the RGBW color you want the light to be. Four comma-separated integers that represent the color in RGBW (red, green, blue, white), within square brackets. This attribute will be ignored by lights which do not support RGBW colors.
rgbww_color	yes	A list containing five integers between 0 and 255 representing the RGBWW color you want the light to be. Five comma-separated integers that represent the color in RGBWW (red, green, blue, cold white, warm white), within square brackets. This attribute will be ignored by lights which do not support RGBWW colors.
color_temp_kelvin	yes	An integer in Kelvin representing the color temperature you want the light to be.
kelvin	yes	(Deprecated) Use color_temp_kelvin instead.
color_temp	yes	(Deprecated) Alternatively, you can specify the color temperature in Mireds.
color_name	yes	A human-readable string of a color name, such as blue or goldenrod. All CSS3 color names are supported.
brightness	yes	Integer between 0 and 255 for how bright the light should be, where 0 means the light is off, 1 is the minimum brightness and 255 is the maximum brightness supported by the light.
brightness_pct	yes	Alternatively, you can specify brightness in percent (a number between 0 and 100), where 0 means the light is off, 1 is the minimum brightness and 100 is the maximum brightness supported by the light.
brightness_step	yes	Change brightness by an amount. Should be between -255..255.
brightness_step_pct	yes	Change brightness by a percentage. Should be between -100..100.
white	yes	Set the light to white mode by setting this to True. Note that white does not have a corresponding state attribute, so the color_mode state attribute will be set to white.
flash	yes	Tell light to flash, can be either value short or long.
effect	yes	Applies an effect such as colorloop or random.

{% note %} In order to apply attributes to an entity, you will need to add data: to the configuration. See example below {% endnote %}

# Example configuration.yaml entry
automation:
- id: one
  alias: "Turn on light when motion is detected"
  trigger:
    - platform: state
      entity_id: binary_sensor.motion_1
      to: "on"
  action:
    - action: light.turn_on
      target:
        entity_id: light.living_room
      data:
        brightness: 255
        kelvin: 2700

# Ledlist morning on, red
- id: llmor
  alias: "Stair morning on"
  trigger:
  - at: '05:00'
    platform: time
  action:
    - action: light.turn_on
      target:
        entity_id: light.ledliststair
      data:
        brightness: 130
        rgb_color: [255,0,0]

{% note %} If no data is sent, and a default profile exists, the default profile will be applied. {% endnote %}

Action light.turn_off

Turns one or multiple lights off.

Data attribute	Optional	Description
entity_id	no	String or list of strings that point at entity_ids of lights. To target all lights, set entity_id to all.
transition	yes	Integer that represents the time the light should take to transition to the new state in seconds.
flash	yes	Tell light to flash, can be either value short or long.

Action light.toggle

Toggles the state of one or multiple lights. Takes the same arguments as the light.turn_on action.

Note: If light.toggle is used for a group of lights, it will toggle the individual state of each light. If you want the lights to be treated as a single light, use Light Groups instead.