One ceiling light, three settings. Works with your existing switch. - Now you can get the ambience you want without having to install a dimmer. Philips SceneSwitch ceiling lights work with the light switch. Simply screw in the ceiling lamp and flip the switch to switch between 100%, 40% and 10% brightness. Available in soft white and bright daylight. Easy installation - No more hassle with installation. Simply attach it to the wall or ceiling or hang it up and plug it in. Your new light is ready to light up your room. Eye comfort: pleasant light for the eyes - Poor lighting can be tiring for the eyes. Since many of us spend a lot of time indoors, it is more important than ever to light the house well. Our products meet strict testing criteria, such as flicker, strobe, glare, colour rendering and dimming effects, to ensure they meet EyeComfort requirements. Uniform light distribution: projects light evenly into rooms Long life: lasts up to 20,000 hours. Worth investing in your home: let Philips help you.