65 lines
2.9 KiB
ReStructuredText
65 lines
2.9 KiB
ReStructuredText
Cold White + Warm White Light
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=============================
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.. seo::
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:description: Instructions for setting up Cold White + Warm White lights.
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:image: brightness-medium.svg
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The ``cwww`` light platform creates a cold white + warm white light from 2
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:ref:`float output components <output>` (one for each channel). The two channels
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can be controlled individually or together.
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.. code-block:: yaml
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# Example configuration entry
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light:
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- platform: cwww
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name: "Livingroom Lights"
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cold_white: output_component1
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warm_white: output_component2
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cold_white_color_temperature: 6536 K
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warm_white_color_temperature: 2000 K
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constant_brightness: true
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.. _cwww_mixing:
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Mixing
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------
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The two channels of this light can be controlled individually by using the ``cold_white`` and ``warm_white`` options of
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the :ref:`light control actions <light-turn_on_action>`.
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If the color temperature of both lights is supplied, it is also possible to control the two channels together by
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setting a color temperature, using the ``white`` (interpreted as brightness) and ``color_temperature`` options. This
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calculation assumes that both lights have the same illuminance, which might not always be accurate.
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Configuration variables:
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------------------------
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- **cold_white** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the cold white channel.
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- **warm_white** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the warm white channel.
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- **cold_white_color_temperature** (*Optional*, float): The color temperature (in `mireds <https://en.wikipedia.org/wiki/Mired>`__ or Kelvin)
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of the cold white channel. Note that this option is required to control the mixing from Home Assistant.
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- **warm_white_color_temperature** (*Optional*, float): The color temperature (in `mireds <https://en.wikipedia.org/wiki/Mired>`__ or Kelvin)
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of the warm white channel. Note that this option is required to control the mixing from Home Assistant.
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- **constant_brightness** (*Optional*, boolean): When enabled, this will keep the overall brightness of the cold and warm white channels constant by limiting the combined output to 100% of a single channel. This reduces the possible overall brightness but is necessary for some power supplies that are not able to run both channels at full brightness at once. Defaults to ``false``.
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- All other options from :ref:`Light <config-light>`.
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See Also
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--------
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- :doc:`/components/output/index`
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- :doc:`/components/light/index`
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- :doc:`/components/light/rgb`
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- :doc:`/components/light/rgbw`
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- :doc:`/components/light/rgbww`
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- :doc:`/components/light/rgbct`
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- :doc:`/components/light/color_temperature`
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- :doc:`/components/power_supply`
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- :doc:`/components/output/ledc`
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- :doc:`/components/output/esp8266_pwm`
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- :doc:`/components/output/pca9685`
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- :doc:`/components/output/tlc59208f`
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- :apiref:`cwww/cwww_light_output.h`
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- :ghedit:`Edit`
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