A fluorescent troffer is a type of lighting fixture commonly used in commercial and institutional settings, such as offices and schools. It is designed to fit into a ceiling grid and typically houses fluorescent lamps, which provide bright, even illumination. Troffers are available in various sizes, with the most common being 2x4 feet and 2x2 feet. These fixtures are energy-efficient and can help reduce electricity costs compared to traditional incandescent lighting. Fluorescent troffers can also be equipped with different types of controls, such as dimmers or occupancy sensors, to enhance energy savings and improve lighting quality in spaces where they are installed.