This is a segment LED bar without control chip. It has 10 segment LEDs, including of 8 green, 1 yellow and 1 red. It is compatible with bread board and can work with Arduino by adding some current limiting resistors.
Power Dissipation Per Segment: 100mW
Continuous Forward Current Per Segment: 20mA
Voltage drop on a segment: 1.8-2 volts
Reverse Voltage Per Segment: 5v