... was developed and put into production by Shanghai Keyan Phosphor Technology Co., Ltd (Patent NO. : ZL01133342.1), it open a new ... single color or combination of different colors on one single wire, animation effect is achieved by circuit control. It has ... form, square, strap, two colors, three colors, etc. The longest wire: 200m Relative humidity: 50% Usual Working Condition: AC220, AC110, DC3V ...