6 in, Height 3.2 in, Width 3.Tower Light Series XVU, Voltage 24V AC/DC, Sound Level 85 dB, Sound Modes Continuous, Pulse, NEMA Rating IP54, Diameter 60 mm, Color Silver, For Use With Harmony (R) XVU Tower Lights, Length 5.5 in, Housing Material PBT and ABS, Standards UL, Current Drawn 70mA, Tower Light Sounder Tier.