Tubular Skylight Full Spectrum Lighting The Healthy Choice By bringing natural sunlight into your room, Tubular Skylight provides the healthy alternative to electric lights. Its a fact, natural sunlight is healthier for our bodies as well as our plants and animals. Full spectrum light creates better working and living environments, improves moods, and work efficiency, too. With a Tubular Skylight you can enjoy optimum light without radiant heat, even on cloudy days! And with a Tubular Skylight bright sunlight is diffused to gently illuminate your whole room, while garish harsh light and UV rays are blocked out, another important health benefit.