Daylighting Products are listed by product type, size, length of tunnel, and sun angle.
TCR-22in-4ft-40sky.ies is a curb mount 22” TCR Sun Tunnel with 4ft of tunnel and represents product performance under an average 40 degree sun angle. This sun angle is ideal for estimating the number of tunnels needed. The 40 degree sun angle can be experience between the following times throughout the year:
In March between 9:00 am–10:00 am
In April between 8:20 am–9:00 am
In June between 8:15 am–8:20 am
A corresponding high 80 degree sun angle is available to understand peak light output experience at high noon in June.
To help identify the correct products, click on the Show Luminare image to see a picture of the products or if more detail is needed to back to our product selection section at: velux.ca/products.