Philips Smart LED lighting puts you in control of your lighting with smart bulbs that are easy to use, functional, and affordable. These 100-Watt A21 Light Bulbs with Dimmable Frosted Color equals more brightness anywhere you need it! We've made all your favorite high-quality Philips bulbs smarter, just connect them to your existing Wi-Fi network. Simply screw in the bulb, download the free WiZ app, sync the bulbs, and begin using. The WiZ app also makes it easy to create a comfortable ambience with presets, custom scenes, and dynamic light settings. Wireless control makes it easy to create a comfortable ambience from your smartphone or voice using the WiZ app from anywhere in your home or even when you are away. Compatible with most voice-activated devices.