Whelen Engineering Company, Inc., Chester CT announces a sleek, multi-level lightbar featuring new “rotating” light modules, using the latest generation of LED technology. Delta Rota-Beam™ Series is a 100% solid-state lightbar… no moving parts, no motors. Two to six Rota-Beam “rotating” beacons plus angled mirrors and thirty-two flash patterns. Low current draw, moisture and vibration resistant. Multi-level for 360° of unobstructed warning. Optional lower level take down and alley lights, Linear6™ warning modules with front/rear control. External photocell for low power, optional. SAE Class I certified and Whelen’s Five Year HDP® Heavy-Duty-Professional Warranty.