The B6T Series Rotating Beacons Super-LED from "Whelen Engineering" has a 700 Series directional lighthead in Linear Super-LED, Scenelight or brake/ tail/turn with built-in electronic flasher. Polished finish on heavy-duty cast aluminum housing. Hard coating on lens resists scratches, chemical, and corrosive damage and has a rotator assembly with precision double ball bearing design for superior long-life performance.