This starter kit gets you going with the best of what Hue has to offer. A bridge and 3 color bulbs can set color and warmth to any scene in your home! Get started with Philips Hue white and color ambiance bulbs and experience high quality white and colored light that offers you endless possibilities.
The Hue lineup offers three different light bulb options. Color bulbs allow you to pick any color you want. Ambiance bulbs allow you to pick from many different shades of white. This allows flexibilty between a warm, inviting environment and an environment geared for focus. White bulbs offer the least in terms of features, but still leave you in control for dimming and turning on/off. Read more about choosing bulbs and color temperature in the Hue Lighting Guide.
All lights and bridges are compatible. For example, 1st gen lights will work with a 2nd gen bridge. Likewise, 2nd gen lights will work with a 1st gen bridge.
B22 is a bayonet light bulb mount common in the United Kingdom, Australia, India, Ireland, and New Zealand, as well as parts of the Middle East and Africa. You can read more about it in the Light Bulb Types Guide.