Federal Signal SignalMaster directional light controllers offer an intelligent and reliable design with expanded features and functions. The SignalMaster controllers operate at 12 and 24 VDC systems and configured to control both halogen and LED directional lights. Available models operate up to fourteen unique flash patterns. The SignalMaster controllers are compatible with all Federal Signal SignalMaster directional light models. Each controller provides left, right, center-out and flashing warning to six and eight lamp direction light models.