FeaturesSolid state voltage limited chargerBrownout protectionLow-voltage disconnectOverload/short circuit protectionTest switch/power indicator light3.6 VDC, 0.78 W DC long lasting LED headsRed letter colorUniversal face red lettersAll components are injection molded, color stable, high impact thermoplastic materialDesigner white textured finish standardComponents are of snap-fit construction to facilitate under 5 min installation reinforcing ribs throughout to provide maximum strengthMolded-in wireways facilitate internal wire routing and connectionsAll components including battery and electronics are located inside the exit housing, snap-fit canopy with captive mounting screws included with all exits90 min battery runtime