Voice Control via Alexa and Google Assistant Voice control your YEELIGHT bulbs by speaking to Amazon Alexa and Google Assistant: Speak out your demand, control your smart devices through voice commands feels like you’re living in the future. YEELIGHT Smart App Free download ‘YEELIGHT’ App and easily control your YEELIGHT products from any Android or iOS devices. Adjust light color, color temperature and brightness, remote control along with setting lighting schedules. Group Control Without Hub Building light groups with not only bulbs, but all series of YEELIGHT products, Desk lamp, Light strip, Bedside lamp and more coming new products. Simultaneously control your light group on YEELIGHT App, no additional Hub is required. Professional Optical Design All YEELIGHT products regard the safety of people’s visual health as the priority. We use high quality LED to provide natural and soft light. With CRI >80, YEELIGHT bulbs give high lighting performance identical to natural lights.