light:
  - platform: template
    lights:
      rgbw:
        friendly_name: "rgbw"
        rgbw_template: (
          {{ state_attr('light.kwadrat_kuchnia_red', 'brightness')  }},
          {{ state_attr('light.kwadrat_kuchnia_green', 'brightness') }},
          {{ state_attr('light.kwadrat_kuchnia_blue', 'brightness') }},
          {{ state_attr('light.kwadrat_kuchnia_white', 'brightness') }}
          )
        turn_on:
          service: light.turn_on
          entity_id: light.kwadrat_kuchnia_red, light.kwadrat_kuchnia_green, light.kwadrat_kuchnia_blue, light.kwadrat_kuchnia_white
        turn_off:
          service: light.turn_off
          entity_id: light.kwadrat_kuchnia_red, light.kwadrat_kuchnia_green, light.kwadrat_kuchnia_blue, light.kwadrat_kuchnia_white
        set_rgbw:
          service: light.turn_on
          entity_id: light.kwadrat_kuchnia_red, light.kwadrat_kuchnia_green, light.kwadrat_kuchnia_blue, light.kwadrat_kuchnia_white
          data:
            rgbw_color:
              - "{{ r }}"
              - "{{ g }}"
              - "{{ b }}"
              - "{{ w }}"