LILLY SOLAR SKY TUBES are Made to Meet Industrial and Commercial Requirements. Sky Tubes are Used to Light up the Darkest Spaces and this System can be Installed Anywhere even be Installed in Multi-Storey Housing and in High Rise Buildings. Sky Tube Installation does not Need to Worry about Possibility of Springing a Leak in the Roof. Solar Sky Tubes Works Using Solar Energy. So You Never have to Worry about Rising Energy Bills. Solar Skytubes Is an Innovative Energy Saving Product for Customers for those Who Expect Lighting up Buildings at Low Cost. Sky Tubes Provide Complete Natural Light to Whole Building.