... brightness 4.Long life 7 segment LED digit display in blue color 4 digit Specifications: Size: 0.39 inch Voltage: 2.8- ... as elevtor/lift, bank exchange rate display, led clock display, led oil price display for gas station and other different display areas of equipment/machine, smart ... -static, Other information: Different sizes are available: 0.24, 0.25, 0.31, 0.32, 0.36, 0.51, 0.56, 1.5, 1.8, 2.3 ...