Digit height: 0.39 inch with different colors Dimensions: 40*14*7 mm Digit quantity: Four Digit Emitting color: high bright red/yellow green/yellow/amber/high bright blue/high bright white/pure green Surface color: black/gray Epoxy colors: red, milky, blue, green and more Polarity: common anode/common cathode Operating temperature range: -20+80 degree Celsius Feature of four digits led display