... ,Amber,Green,Blue,White.2,Available bracket types:S,T,L,R,P.3,Enhanced visibility from any direction and distance ... .5,Buzzer volume: 100-120 dB /M.6,Materials of construction:Layer of PC,lampshade of ABS,Stand of Al.7,Materials ... corrosive.Protection classification:IP54,IP65.8,Certification: CE,RoHS. EMA Multi-layer LED Signal Light Towers