The Allen Bradley 855T-B24FN3 Control Tower Stack Light is a light-only signal module within the Bulletin 855T Stack Light series, designed for dependable visual indication in industrial signaling applications. It features a flashing incandescent illumination light and a green lens cover that provides clear and easily recognizable status visibility. Built to meet both CE and cUL certification standards, the 855T-B24FN3 ensures compliance, safety, and durability in various automation environments. In North America, Europe, Asia, and worldwide facilities, this stack light may possibly be applied in control systems that require certified, high-visibility signal indication for operational monitoring.