The Sentry rotating beacon is a reliable, effective warning light in an attractive, compact package. Sentry beacons combine a large parabolic reflector and a brilliant 55-watt halogen bulb to produce an attention-getting 80,000 candelas per flash. All models meet SAE J845 Class 1 requirements, making the Sentry ideal for construction, landscaping and municipal applications. The Sentry beacon, built with non-corrosive material, is also easy to maintain. It features a locking “twist-off” dome and all components are field replaceable without tools.