Why tubular instead of traditional skylights?

Tubular skylights emit more light than traditional skylights because of the high reflectivity of the mirror-like light pipe. Tubular skylights are far more energy efficient than traditional skylights. They are designed with a sealed shaft which minimizes the transfer of heat or cold into your home, unlike traditional skylights which generate heat. Tubular skylights scatter 100% of the natural light spectrum through the use of a diffuser, thereby eliminating the spot light effect common with the traditional system. 99% of harmful UV rays are absorbed by both the specially designed dome and by the light pipe, thereby eliminating the bleaching effect on rugs and furniture. Tubular Skylights are far more economical; a tubular skylight can be installed in less that two hours-a fraction of the time it takes to install a traditional skylight. No structural changes or painting required for the installation of a tubular skylight.