A skylight tunnel, also known as a sun tunnel or light tube, is a tubular device used to transmit natural light from a roof surface to an interior space. It consists of a translucent or transparent dome mounted on the roof, a reflective tube that channels the light to the interior ceiling, and a diffuser that spreads the light into the room.
Skylight tunnels are used in building design to provide natural daylight in spaces that do not have access to windows or where windows are insufficient due to their orientation or size. They are particularly useful in buildings with deep floor plans such as commercial spaces, corridors, bathrooms, and closets. Skylight tunnels can also be used to redirect natural light to areas that are typically in shade or suffer from poor natural light conditions. By using skylight tunnels, designers can reduce the reliance on artificial lighting, lower energy consumption, and improve the visual and thermal comfort of the indoor environment.
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