Electrochromic glass is a type of smart glass that can change its tint or opacity when an electrical voltage is applied. This technology allows the glass to control the amount of light and heat entering a space, enhancing energy efficiency and comfort in buildings and vehicles. The glass is made up of multiple layers, including a conductive layer and an electrochromic layer that reacts to electricity. When activated, the glass can shift from clear to dark, providing privacy and reducing glare. This innovative material is increasingly used in architecture, automotive design, and smart windows.