What is a light and sun deflector?

This is a unique, optional device, which is fitted under the roof glazing.

A light and sun deflector intercepts direct sunlight that would otherwise miss the top of the system at both low and high incident angles, reflecting it down the sun Lite tube.

Monitoring has shown that a south-facing light/sun deflectors can increase the light level at the ceiling diffuser by up to 20% in direct sunlight.