... 4.Long life 0.56 inch 7segment 3 digit red LED display Specifications: Size: 0.56 inch, other size also available ... '',4'',5'',,,,,,,,Voltage: 1.8-2.3vWavelength: 46630-640nmemmiting color: red.other emmiting colors are available: yellow,blue,gren ... /lift, bank exchange rate display, led clock display, led oil price display for gas station and other different display areas of equipment/machine, smart ...