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 harsh light and UV rays are blocked out another important health benefit.