Best way to turn number of lights to a specific colour

HI All

I have several lights that come on automatically at dusk. They are all set to green.

If I wanted to change this group of lights (not all lights in house), and mainly through voice (google) control what is the best option. Not when they turn on but at anytime.

I was thinking creating a helper but not sure that that is the best or only way to do this.

I would like the end result be something like 'hey google/alexa turn groupname to red"

Cheers.

peter

Solved.

Created a helper Group LIghts added all lights into the group and gave voice permissions.