Led display, Led sign, Led screen, Led billboard, Led digital sign, Advertising display, electronic signs, Led scrolling sign, Led video display, Led electronic display, Optoelectronic display, Led message screen, Led advertising boards, Led display board, Led moving screen, Led moving sign, Led message board, Led panel are our leading products. We are Hangzhou Honghao Electron Co., Ltd., a professional manufacturer of LED display, is located in Hangzhou City, near Shanghai, China. Display function: 1) 26 kinds of fonts, 26 show modes, 8 colors(bicolor) or 256 colors(full color). 2) Optional communication ways: RS232, RS485, USB, TCP/IP，GSM，GPRS，RF. 3) All LED displays can be connected through 485 communication Interface. 4) All collocation of LED display can be carried out by computer. 5) With real-time time system. 6) 512 K own storage space, 400000 Characters can be stored ,information can be preserved for 10 years or even longer 7) Power source: 100V-240V AC, 12V or 24V is also available