Accessories for sun tunnels

The extension tunnel ZTR is used for extension of rigid sun tunnels TWR, TLR and TCR when the distance from roof to ceiling level exceeds 1.70 m. The tunnels can be extended with sections of ZTR up to a maximum of 6.0 m. ZTR comes with Flexi Loc for easy assembly.

The extension tunnel can be purchased in 64cm and 124 cm lengths.

Light kit ZTL 014L gives light in your sun tunnel when it is dark outside. The kit is supplied with a 4W LED light bulb (corresponding to a 40W incandescent bulb).

The light kit can be installed at any time. Fits both 10” and 14” rigid and flexible sun tunnels. Low energy LED technology provides a long lifetime of dependable light (approx. 18 years), while the slim line design eliminates shadows on the diffuser pane.

VELUX A/S has developed a kit that lowers the u-value in a standard installation. The low u-value kit consists of two panes and a gasket.

• Lowers the u-value from 2.9 W/m2k to 1.8 W/
• Discreet design
• Easily mounted on already installed sun tunnels