Yes, the Solatube® Daylight Dimmer controls the amount of natural light entering a room. Utilizing a patented butterfly baffle design and a convenient wall-mounted switch, it allows the user to adjust light levels simply and easily anywhere between 100% and 2% daylight. This residential application is perfect for bedrooms, family rooms, and offices. The Daylight Dimmer is available for the Solatube Daylighting System 160 DS and 290 DS.