Great question, Susie! The SmartThings Smart Bulb can be controlled using Alexa. In order to do so, the Smart Bulb needs to be connected to the SmartThings Hub within the SmartThings App. After connecting the SmartThings Hub, you can then enable the SmartThings Skill for Alexa within the Alexa app. You can learn more about how to connect SmartThings with Alexa on our Support page here -- https://support.smartthings.com/hc/en-us/articles/205275404-How-to-connect-Amazon-Alexa-with-SmartThings. Thank you! ~Samsung Brand Ambassador