Guangzhou Funtree Lighting Co., Ltd is specialized in producing outdoor LED grid screen and addressable RGB LED strings. All our screens/strings are compatible with WS2811 protocal.We are leading manufacturer of 4-wire LED nodes, which are dual-signal wires version of data transmission. One data line is for control data signal input, another data line is for backup control data signal input. Which means signal break-point continuous transmission if one LED node fails. The failed node won't a...