1.led,back lit 2.long life span 3.brightness adjustable 4.CE x ray film viewer 5.individual function for each bank 1-section2-section3-section4-sectionVisual(inch)14''*17''28''*17''42''*17''56''*17''Frame(mm)500*530850*5301200*5301570*530MaterialHigh quality Al. alloy with electrophoresis finishing.ABS plastic,PMMA boardThickness45mmLight sourceLEDColor temperature5600KLuminosity5000-10000Lux( ...