Compact single-source power supply produces a accumulated 19 joules of energy. This power supply has a mounting plate that can directly replace factory installed systems on S/E Cessnas, S/E Aero Commanders and S.E Grumman Americans. Power consumption 1.7 amps @ 14 volts DC, .85 amps @ 28 volts DC. Weight: 1.5 lbs Length 5.0″, Width 3.12″, Height 2.25″. Flash rate 50+/- 5 FPM.