... ,blue,amber,white 4)Materials:PC Lens,aluminum base 1)lightbar with LED display screen2)Working voltage:DC12V/24V3) ... Color:red,blue,amber,white4)Materials:PC Lens,aluminum baseStructure1. ... and red3. Frame made of hardness aluminum alloy,the surface is deal with anodizing,with excellent rot proofing,graceful figure,superrority workmanship ...