... ,blue,amber,white 4)Materials:PC Lens,aluminum base 1)lightbar with LED display screen2)Working voltage:DC12V/24V3)Color:red, ... ,aluminum baseStructure1. Information screen is composed of display,controller and installation accessory.2. Form made of high-performance PC ... available in amber and red3. Frame made of hardness aluminum alloy,the surface is deal with anodizing,with excellent rot proofing, ...