The Firepower 5499 Distributed Power Module by Silent Knight is the most powerful and cost-effective power supply available today. It delivers 9 amps of notification appliance circuit power and built-in synchronization for appliances from System Sensor®, Gentex®, Faraday®, and Wheelock® - what you need to drive power-hungry components like ADA notification appliances. The 5499's advanced microprocessor design is years ahead of the competition. Its switch mode power supply design is up to 50% more efficient than competitive linear mode power supplies. And, ADA retrofits are easier and less expensive with the 5499 because it integrates into current systems without the costly investment in new components.