Allen-Bradley 855E-12TL4 is a 50 mm Control Tower stack-light light module with a red, steady LED lens designed for socket-mount installation in 50 mm stack-light basing systems. Operating at 12 V AC or DC (full voltage), this red lamp module provides continuous indication as part of the 855E family to convey a steady “on” state for fault or status signals. The compact, socket-mount module is intended to be paired with compatible base hardware to form a clear, conspicuous visual indicator in industrial control panels and equipment signaling networks.
