SUN PIPE SUN TUNNEL -SOLAR LIGHT TUBE - Capture, Transmission and diffusion of natural lighting. Chatron's SUN PIPE SUN TUNNEL -SOLAR LIGHT TUBE are systems for capturing and transmitting natural Daylight to the interior of the buildings where they end with the solar diffusers. The dome is placed on the outside and maximizes the capture of natural light that will enter the SUN PIPE SUN TUNNEL -SOLAR LIGHT TUBE and route it to the solar diffuser placed inside the installation. In the background it is as a Light Tunnel. The great advantage is that it can bring natural light to spaces that were otherwise was practically impossible to illuminate: lighting for indoor bathrooms, corridors, cellars etc. The domes, SUN PIPE SUN TUNNEL -SOLAR LIGHT TUBE and solar diffusers have unique and selective features, so they transmit the good light and eliminate harmful light (UV, and part of the Infrared) so that the heat or cold transmission to the interior is residual.