Beta nit is an Italian group with 20 years of experience in daylight, produces, designs, and prototypes simulators of natural light (heliodons, artificial skies, and solar simulators).Beta nit offers solutions based on customized products developed using a cutting edge creative process which combines a unique integrated and synergic use of electronic, optical, software and mechanical technologies. Solar geometry is very complicated and dynamic to explore is very important and daylighting specialists recommends a natural light simulator for every architect, planner and developer, as well as for schools of architecture and science museums. In Beta nit there is an appropriate model for every situation.Daylighting is an important strategy in designing net-zero buildings in the effort to reduce climate change. Furthermore, people want and need natural light for health, circadian cycle respect, psycological, and spiritual reason.Thus, daylighting and Beta nit enriches life well as architecture.