Control brightness of lightbulb that is ON

Hi,

I have a group of 8 spotlights under ‘group.lv_lights’. I have created a For Loop to go through each entity of the group. I want to be able to adjust the brightness of only bulb that is turned ON. For the bulb that is OFF, the for loop are suppose to skip it so that it will not be adjusted on the brightness. Currently I’m having error in the for loop section which I’m not sure how to correctly… Appreciate any help out there. Thanks

# ---------------------------------------------   INPUT NUMBER  --------
input_number:
  lr11_bright:
    name: brightness
    min: 0
    max: 100
    step: 1
# ---------------------------------------------   Groups  ————--------
group:
  lv_lights:
     name: all living room lights
     entities:
       - light.lv_spot11
       - light.lv_spot12
       - light.lv_spot13
       - light.lv_spot21
       - light.lv_spot22
       - light.lv_spot31
       - light.lv_spot32
       - light.lv_spot33
#
Automation:
- alias: control brightness for active lightbulb
  trigger:
    platform: state
    entity_id: input_number.lr11_bright
  action:
    - service: light.turn_on
      data_template: >
         {% for entity in states.group.lv_lights.attributes.entity_id -%}
             {%- if states[entity.split('.')[0]][entity.split('.')[1]].state == 'on' %}
        entity_id: "{{ states[entity.split('.')[0]][entity.split('.')[1]].entity_id }}"
        brightness: "{{ trigger.to_state.state | multiply(2.55) | int }}"
             {%- endif %}
         {%- endfor %}

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