One bulb, three settings. Works with your existing switch. - Now you can get the ambience you want without having to install a dimmer switch. The Philips SceneSwitch bulbs work with your existing light switch. You just need to screw in the bulb and turn the switch over to switch between 100%, 40% and 10% brightness. Available in soft white and bright daylight. ENERGY SAVING This Philips energy saving bulb saves energy compared to traditional light sources, helping you save money on your electricity bill and make your contribution to the environment. Choose outdoor ceiling lights - Make the most of your outdoor space with this ceiling light, perfect for lighting your home porch or patio. IP54 weatherproof - This Philips outdoor light has been specially developed for damp outdoor environments. It has been rigorously tested to ensure its water resistance. The IP level is described by two figures: the first refers to the protection level against dust, the second against water. This outdoor light is rated with IP54: it is protected against splashing water. This product is most commonly used and is ideal for general outdoor use. HIGH QUALITY MATERIALS - This lamp is molded from layered patterns of high quality materials with excellent workmanship. This ensures a solid and durable product that will brighten up your home for many years to come.