TUBULAR SKYLIGHT, a breakthrough energy free product, brings natural sunlight into the gloomiest areas of your home or office during daylight hours even when it is cloudy. Manufactured in Southwest Florida (The Sunshine State), TUBULAR SKYLIGHT brings daylight from the rooftop into your home, school, office or factory. The Florida Energy Conservation Office reports that TUBULAR SKYLIGHT increased light levels to the equivalent 1800 watts of light and produced 68% less heat.