What is the difference between a flexible Sun Tunnel� and a rigid Sun Tunnel�?

Flexible Sun Tunnel� easily bend so it is recommended to use a flexible Sun Tunnel� when manuveuring around obstacles is required. Flexible Sun Tunnel� are ideal for shorter runs. A rigid Sun Tunnel� is recommended when there is a straight, unobstructed path from roof to ceiling. It produces a brighter white light and is excellent for long runs.