Rigid98 Reflection Calculator
Domestic
Industrial
To give you an idea on how much extra light a Sky tunnel can give you, use our Sky Tunnel Rigid98 calculator.
Use the slider buttons to modify the parameters that simulate the condition of your SkyLight
Degree of the sun: °
20°90°
Length of tube: mm
1200mm 1800mm 2400mm 3000mm 3600mm
Diameter of tube:
343mm (14")
457mm (18")
535mm (21")
457mm (18")
535mm (21")
Output
Number of Reflections: 0
Light output: 100%







