3.0mm 8x8 LED dot matrix indoor display with yellow color Specification: 1) Dots Size: 1.9mm 3.0mm.3.7mm,5.0mm,8 ... dimensions available) 2) Color: red, green, yellow, blue, orange. 3) Characteristics: Long life-span, low voltage, energy saving, even luminance ... certifications 7) Applications: outdoor or indoor using, elevators/lift, led strip display, clock display and other different display areas of ...