Microsoft Cortana.

"Hey Cortana, turn off the bedroom lights"

Across your work life and your personal life, Microsoft Cortana is your intelligent assistant. Cortana is built-in on Windows 10 PCs and Harman Kardon Invoke smart speakers, and she's available as a free app for iPhone and Android phones.

"Hey Cortana, turn the lights on."
Make life easier by using Cortana to control your LIFX lights.

"Hey Cortana, turn on the kitchen lights."

"Hey Cortana, dim the lights."

"Hey Cortana, change the lights to blue."