1. Adopt high brightness LED lamps. Brightness is automatically adjusted along with the outside light intensity.
2. Lifespan: Over 100, 000 hours.
3. Color: Red, green and yellow is available. It can be displayed by single color, or mixed color at different section.
4. Multi-language: English, Chinese, Arabic, Russian, Portuguese, etc.
5. Display modes: Static, rolling, or combination.
6. Control mode: By RS232/485/ USB/IR kepad/GPS/GSM/GPRS wireless control; By voice stop announcer.