The Acuity Controls nLight NPP16 D ER EFP Emergency Operation, Power/Relay Pack is a white relay power pack designed for LED lighting technology. With a voltage of 347V and a current type of AC, this pack includes 1 unit from the trusted brand Sensor Switch. Specifically designed for emergency operations, this product ensures reliable power management in case of unexpected situations, making it a valuable addition to any lighting system setup in the home or garden.