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Federal Signal’s LED SignalMaster warning light is built with patterns that sequentially activate each LED module to direct on-coming traffic to the rear of the vehicle. Each of the 8-lamp modules contains 32 powerful Amber LEDs that draw only 0.30 amps. The LED SignalMaster is designed for internal or external mounting and comes equipped with four built-in housing channels for flexible mounting. For external application, the extrusion of this directional warning light is designed to block sunlight for more effective warning.