... aluminum frame,thickness is 40mm 2.Open from four sides, Outdoor Light boxOptimal aluminum alloy frame, snap-open, cover width is ... 60MMWaterproof & dustproof design is suitable for both indoor or outdoor use.Adopt new optical quality acrylic material , use the top ... , the CRI more than 80 the picture to liquid crystal display color, brightness are higher than the market similar products, light ...