When you are waking up in the midnight, bedroom,washroom is very dark or dim, if you will consider light assistant to help you ? Now the skill will help you out and simply solve this by echo device.
Simply say,"Alexa,ask light controls to turn on the light" then the light is open. Simply say," Alexa,ask light controls to turn off the light" then the light is closed.
Believe that your life will be colorful to master this skill and enjoy everyday.