Allen-Bradley 855T-B10TL4 is a 70 mm control tower stack light module with a black housing and a red lens, designed for 120 V AC operation and shipped with a cap. As a steady LED signaling module in the 855T TL family, it provides continuous red illumination for status indication on automation panels and can be stacked with other TL modules to form a multi-color signaling tower. It carries a NEMA 4/4X/13 rating.
