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Based on a P9813; Can be cascaded all lights of the drive module; Just two signal lines and two power cords can control five meters long full-color (RGB) light bar; Can also be cascaded more drive modules to control more light bar; Just set the program of red£¬ green and blue corresponding to that of the corresponding channel; Widely used in guardrail control£¬ room decor and other occasions; Suitable for 5V MCU system£¬ Arduino UNO R3 and compatible motherboard.