Configuration to control yeelight via Alexa

Hi, I have just installed Hass.io on a Raspberry Pi 3.
I connected to Home Assistant Cloud to use my Alexa, install HA skill at amazon and I also configured yeelight bulb (see configuration below).
What should I write in the configuration file in order to voice control the yeelight via Alexa ?
Thanks for your help.

Configuration:

light:

  • platform: yeelight
    devices:
    10.0.0.56:
    name: Dining Room Left Light
    transition: 1000
    use_music_mode: False #(defaults to False)
    save_on_change: True #(defaults to True)