Button Card light syntax

Stuck on a simple issue…I am trying to use a button card to turn on a light…simple enough, however, I want to send the initial settings for brightness and temperature when it turns on. (I am using the Wyze-API integration for a few bulbs that as of now does not retain last state). I figure using call-service, I can’t figure out the syntax. Also want to retain light icon and slider etc. Thanks.

type: button
tap_action:
  action: call-service
  service: light.turn_on
  service_data:
    entity_id: light.your_light
    brightness: 128
    color_temp: 2700
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