Hotel Room Annunciator Kit, Voltage Transformer Primary: 120V AC; Secondary: 24V AC, Amps Horn/Strobe Current Draw: 175 mA at 24V 50/60 Hz; 125 mA at 24V DC, Color Clear Lens, White Housing, 82 dBA @ 10 ft, Signal Output Strobe: 50 cd on-axis, Includes 592 Transformer, 620 Stainless Steel Faced Push Button, 6536-G5 Horn/High Intensity Candela Strobe, Standards UL