You can't turn off a skylight. Floods of natural light are normally welcome in the home, but what if you want to take a nap or watch television during the day? A traditional skylight might force you to reconsider your plans. But the Solatube alternative—specifically thanks to its optional Daylight Dimmer—enables homeowners to adjust the light levels to their taste, simply by toggling a wall-mounted switch. In this way, Solatube pairs the benefits of a skylight with the convenience of electric light. You get natural illumination where and when you want it, on your own terms.