Flexible Sun Tunnel

The VELUX SUN TUNNEL Skylight bypasses all obstacles, using an adaptable reflecting tube to direct daylight into every corner of your home. The effect is brighter and more comfortable living areas.


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.

Pivoting tunnel system
The adjustable pitch adapter makes tunnel installation easier and enables more light to be captured.

Flexi Loc™ system
A tunnel connection system that reduces tunnel installation time in half and highly reflective tunnels that deliver the highest quality daylight into the space below.

Different designs to match your roof style

Diffuser options




Decorative diffuser

Ceiling level decorative diffusers that transform daylight into a decorative style that complements any décor.

Brushed nickel

Polished brass

Oil rubbed bronze



ZTK Daylight controller with KES Power supply for controller
Allows the user to control the amount of daylight that enters a room and perfect for rooms that require room darkening.
Power supply for VELUX SUN TUNNEL skylights light control devices.

ZTC Energy kit
Designed to increase the energy efficiency of the VELUX SUN TUNNEL skylight and enables your SUN TUNNEL to exceed the ENERGY STAR® requirements.

ZTR Rigid tube
24” tunnel sections manufactured with the Flexi Loc™ tunnel connector system that reduces tunnel installation time in half and delivers the highest quality daylight into the space below.

ZTE Elbows
A durable and easy to operate elbow that can be used at thetop, bottom, or middle of your installation. Multiple elbows can be joined together with rotating couplers to form a 90° degree bend or any configuration needed to maneuver around obsticles.

ZTK 014 manual blackout shade
Installs in minutes, easy to operate, blocks out the light when not wanted. For 10″ and 14″ SUN TUNNEL skylights.

Tile flashing kit
A tile flashing kit is available for SUN TUNNEL skylights being installed on tile roofs.

Flexible extension tube
Flexible extension tubes are available for flexible SUN TUNNEL skylights.

ZTA Turret
For applications where the SUN TUNNEL skylight dome needs to be raised above the height of our standard product.

ZTL Night light kit

The VELUX ZTL electric light kit enables flexible and rigid VELUX SUN TUNNEL skylights to be used as a light source even at night.