Natural Light Tubular Skylights For about the cost of a nice light fixture, you can bring the soft light of the sun into virtually any space in your home. Installed on any roof surface in under two hours, you will quickly realize the cost benefits of a tubular skylight over incandescent and even traditional skylights. In addition to the free daytime operating cost, Natural Light tubular skylights do not contribute to heat loss or gain, unlike standard framed-in skylights. The 10" kit includes everything needed to install the skylight including 2 sections of 24" Light Pipe.