This Philips Hue White and colour Ambiance MR16 LED bulb 5.1 W 400 Lumens allows you to easily set the right light intensity in your home. Let it fill the space around you with different colors and shades of white. from cold white to warm white. at all times of the day. To exploit even more of its potential. you can install the Philips Hue Bridge. Key Features Smart light control Adjust cool white light to warm white. or dim the light to create a cozy atmosphere in the evening. It all depends on your preferences and daily activities. Hue bluetooth app With the Hue bluetooth app. you can easily control the lights in your home with your smartphone. You can add up to 10 smartlights. Voice control Philips Hue works with Amazon Alexa. Control all the lights in your home with just your voice. Philips Hue-Bridge Buy the Hue Bridge (sold separately) and get even more functions and benefits. It allows you to add up to 50 lights to the bridge and create routines so you can have full control over the smart lights in your home.