1)Display message is high brightness
2)Famous brands:SkyMsx
3)Change information is easy
4)Controller/GPRS/RF
5)Easy change.

parameter:     1.Size of Pixel Diameter(mm) : 4.0 2.Pitch of Pixel(mm) :20 3.Quantity:2R or 3R 4.Colors: 1 5.Brightness(mcd/m2):3000 -- 4500 6.Frame Rate(Hz/s): 128 7.Refresh Rate(Hz):240 8.LED Life-span(hour):80000 9.Mean Time Between Failures(hour):50000 10.Viewing Angle (horizontal axis):>1600 11.Viewing Angle (vertical axis)>600 12.Data Transfer Range: RS485(1.2KM)/RS232(15m) 13.Viewing Distance (m) :20--120 14.Module Dimensions WxH(mm):320*160 15. Module Resolution WxH(pixel): 16x8 16. Maximum Power Consumption of the Module(W/m2): 12 or 18 17. Average Power Consumption of the Module(W/m2): 3 or 4 18. Pixel Density(pexels/m2): 2500   We have plenty experiences design and intall LED Text Moving Sign,the picture attached is one of the project s which located in Pakistan .