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