ShenZhen Koi-LED is one of the high-tech enterprises, which integrated research, producing, selling, engineering and service into the whole, since the establishment, especially dedicated in LED system research and generalization, during many years truggle, our products had expended from the initial one color sign, security sign, bank exchange rate sign to the 256 levels gray scale display, and presently some indoor and outoor full color LED display system, adopting the newest SMT technology, Our products applied in post, telecom, finance & security, electric power, transportation, municapal advertisement and other fields, Products exported to the Europe, America, HK & Macao, and other Asian areas.