Allen-Bradley 855BM-LS Xenon Strobe Lamp Assembly

Allen-Bradley 855BM-LS Xenon Strobe Lamp Assembly is a replacement Xenon strobe lamp designed for 120 mm beacon housings in the Allen-Bradley 855 signaling family. This Xenon strobe tube is specified for use with 120 mm beacons in 855BS, 855BM, and 855BL units, providing the characteristic quick Xenon flash used for industrial signaling. The 120 mm length refers to the lamp tube size that matches the corresponding beacon optics and mounting. As a genuine Allen-Bradley/Rockwell Automation part, this lamp assembly is sold as a maintenance item to restore full strobe functionality in 855-series beacons. The Xenon strobe lamp operates as part of the beacon’s signaling system, delivering a brief pulse that captures attention in demanding environments where clear indication of machine status or hazard is critical. The broader 855 signaling family documentation notes that Fresnel lenses support steady and flashing halogen and xenon strobe functions, with the 120 mm variant occupying the 855BM-LS category—specifically the 120 mm xenon strobe lamp. This replacement lamp is intended for use as part of standard maintenance, ensuring continued signaling reliability in industrial settings.