Rota-Beam RB6T is a versatile, mid-sized beacon, perfect for utility, maintenance, fire and rescue applications. Its straightforward re-lamp-able design is easy to install and easy to service. In 1956 Whelen introduced the popular Rota-Beam Series. Back by popular demand, we've now added a new dual reflector model. For fire truck applications, it is the first rotating beacon to meet NFPA requirements in red/red for the "Upper Zone C". It's part of Whelen's tradition; providing superior performance and reliability with lighting products that meet and exceed typical warning light requirements.