Sunshine is the best and way to provide light to people. The ALTSA Ewindow was designed to reproduce sunlight shining through a real window into a room. The ALTSA Ewindow perfectly integrates the latest LED technology, optical design and intelligent controls to provide a unique lighting experience. It improves the lighting effect in many applications. The ALTSA Ewindow utilizes Circadian Lighting Measurement to follow the law of dynamic sunlight and thus synchronizing light intensity and colour temperature during the course of the day. With Circadian Light rhythms, people see better, function better and feel better.