Include a Philips Hue white bulb in your Philips Hue system and experience high quality white light that you can dim smoothly. White bulbs like this are capable of dimming but do not offer the color options and color temperature settings that other bulbs offer.
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.