Technical characteristics: 
1. With super bright pure green LEDs with different intensity for day and night. 
2. Brightness 1000 mcd/LED and dot pitch (distance between the LEDs) 1.4~20 cm. 
3. Practical and functional device. 
4. Material of housing profile of aluminium and acrilic optical forward cover 3mm thickness. 
5. Inputs: wireless control by computer. 
6. Operation voltage: 220V /110AC. 
7. Very low consumption. 
8. Programmable messages 
9. A lot of special effects of messages and animations. 
10. Displaying clock date and temperature. 
11. Scheduling programmable messages. 
12. Possibility of wireless communication. 
13. Low price. 
14. 2 years guarantee of good operation.