In the 1990s, Dan Flavin continued to explore and redefine the boundaries of art using fluorescent light, emphasizing the interaction of light, color, and space. This period marked a consolidation of his earlier themes and techniques, resulting in installations that engaged more directly with architectural spaces and viewer perception. The decade also saw Flavin's work gain further institutional recognition, with large-scale installations and retrospectives that underscored his influence on contemporary art. One of Flavin's significant contributions during this time was his final work, a site-specific installation for the church of Santa Maria Annunciata in Chiesa Rossa, Milan, completed just days before his death in 1996. This work exemplified his lifelong interest in spaces and how light can transform them. Unlike his earlier pieces, which often focused on the phenomenological experience of light in gallery settings, this installation interacted with a religious space, offering a secular yet deeply contemplative experience that bridged the sacred and the mundane through the medium of light. Throughout the 1990s, Flavin's installations continued to explore the nuances of fluorescent light, using commercially available tubes to create pieces that were at once minimalist and expressive, conceptual and physical. These works were characterized by their simplicity and directness, rejecting complex symbolism in favor of pure sensory experience. Flavin's dedication to minimalism and conceptualism, where "less is more," remained a consistent theme, even as the scale and ambition of his installations grew. His works from this period, often large-scale and engaging directly with their architectural surroundings, reflected a mature articulation of his lifelong themes: the exploration of light as both a medium and a subject, the intersection of art and space, and the minimalist assertion that art can be both profoundly simple and deeply affecting. Moreover, exhibitions in the 1990s, such as those at the Cardi Gallery in Milan, showcased Flavin's career-spanning experimentation with light, color, and space. These shows not only highlighted the evolution of his artistic language from the 1960s onwards but also reinforced his status as a pioneer of minimalism and installation art. Through these exhibitions, Flavin's work was presented as a continuous exploration of the potential of light as a primary element in art, challenging traditional notions of sculpture and space and reaffirming his impact on future generations of artists. Flavin's legacy is one of radical simplicity and profound depth, an artist who transformed everyday materials into transcendent experiences of color and light. His work in the 1990s, marked by significant installations and a deeper engagement with architectural spaces, represents a culmination of his artistic journey, leaving a lasting impact on the field of contemporary art​ (DailyArt Magazine)​​ (Juliet Art Magazine)​.