Explosion proof grade: Ex db eb IIB/IIC T6 Gb/Ex tb IIIC T80 ℃ Db● Rated voltage: AC220V/50Hz● Customized voltage: AC/DC12, 24, 36V● Light source: 5W LED● Luminous colors: red, green, yellow● Sound intensity: ≥ 90/120/180dB● Dimensions: I: Φ 160 × 205mm, II: Φ 180 × 205mm, III: Φ 275 × 180 × 230mm● Weight: 1.8Kg, 2.2Kg, 3.6Kg