Rating voltage: 120V Power: 5 -- 25W Sound level:105 -- 118dB Ex mark: Exd IIBT5 Used for explosion area in ships.Rating voltage: 120VPower: 5W, 10W, 15W, 25WSound level: 105dB, 108dB, 115dB, 118dBColour:Lake greenEx mark: Exd IIT5IP Class: IP56Weight: 5KgMaterial:Casting Aluminium Explosion Proof Speaker, Marine speaker