After the 1960s, the approach of using light technologies as an artistic tool began to become prevalent among artists. Over time, there has been a transformation from the representation of light to its reality, to its physical existence, and from there to a fundamental element that shapes artistic projects with the effect of new technologies. Light ceased to be a means, a subject of description, and turned into a medium, into the practice itself. Artists who started to use light as the main material in the creation of artistic projects, especially by exploring the relationship of light with our perception and experience, design installations that change the way people perceive their daily visual environment and encourage high perceptual awareness. The accessible installations of one of the pioneering artists of the Light and Space Movement, James Turrell, focus on our spatial experience, created by the direction of light, and the effects of this experience on our perception. In his work, Turrell is influenced by the texts of Maurice Merleau Ponty and scientific studies on the optical phenomenon known as the Ganzfeld effect. In the study, James Turrell's accessible light installations, which intervene with natural and artificial light, space, and architecture with the descriptive analysis method, will be examined in terms of perceptual experience, color and space, the main elements that shape the artist's work.
Keywords: Installation, light installations, perception