Philips hue signals a new era in home lighting both in the way we think about and experience light in our homes. It allows you to create and control the light using your smartphone or tablet, bringing endless possibilities to help you get creative and help you personalize your lighting to suit your and your family's lifestyle. This starter pack includes three bulbs that simply screw into your existing lamps and a bridge that you plug into your home Wi-Fi router. Simply download the hue app to start experiencing light in a completely new way. The included hue wireless bridge is required for controlling the hue lighting system -- up to 50 bulbs. You can add more bulbs to your system by purchasing a single-bulb package. Hue can help you relax or concentrate, change the atmosphere of a room, help keep your house safe when you're out and even remind you of that magical moment on vacation by creating scenes based on your photos. The possibilities are endless. Each hue bulb produces great white light, 16 million colors and hassle free dimming. The LED technology delivers up to 80 percent energy savings and an exceptionally long life compared to other light sources.