Also known as VELUX light tubes or VELUX solar tubes

VELUX SUN TUNNEL skylights are designed to provide natural light into corridors, stairwells, bathrooms and cupboards, under pitched roofs,where installation of a skylight or roof window is not possible.

The VELUX flexible tunnels provide installation flexibility. Flexible tunnels can be used when the distance between the roof and the ceiling is too small or too great for a straight – or rigid – tunnel.

A VELUX SUN TUNNEL skylight is easy to install, regardless of your roof type.


Design to match your roof style

Low Profile TGF

Pitched TMF

Sun Tunnel Features

Price ranges for VELUX Sun Tunnel™

VELUX SUN TUNNEL™ Skylights are available in the following size ranges. Your installer will help you determine the exact size needed for your space.



Choose from three different diffuser options to go with your VELUX Sun Tunnel. All VELUX Sun Tunnels are equipped with a frosted diffuser.

Diffuser frosted


The smooth surface disperses daylight evenly, brightening up any living space.
Diffuser prismatic


The Prismatic diffuser is widely used in commercial settings.
Diffuser fresnel


The Fresnel diffuser is composed of concentric honeycombs that transmits daylight in style.

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VELUX SUN TUNNEL Flexible Skylights