What commands can I use to control my Luka Smart mirror lighting?

Assuming your device is named MIRROR… 

"Alexa, turn on MIRROR light."​ 

"Alexa, turn off MIRROR light."​ 

"Alexa, set MIRROR light to warm white"​ 

"Alexa, set MIRROR light to soft white"​ 

"Alexa, set MIRROR light to cool white"​ 

"Alexa, set MIRROR light to daylight"​ 

"Alexa, dim MIRROR light"​ 

​"Alexa, brighten MIRROR light"​ 

"Alexa, set brightness to 50%"​ (or in 10% increments up to 100%) 

"Alexa, turn on MIRROR night light"​