... blue,amber,white4)Materials:PC Lens,aluminum baseStructure1. Information screen is composed of display,controller and installation accessory.2. ... ,with excellent rot proofing,graceful figure,superrority workmanship4. Screen composed of high-luminance LED module with 16×64 ... amber,blue6)The electronic overturn machine composed of speed-down motor,advance screw,overturn arm and control circuit.The ...