Legrand siren, supply voltage: 230 V 50/60Hz, dimensions (diameter): inside 60 mm, outside 73 mm, length 103 mm. Current consumption: 230 mA, power 57 W, for acoustic signaling, volume 105 dB at 1 m, continuous operation max. 100 hours, protection class IP 30 - IK 05, color: black, for surface mounting or front panel installation.