... connect 512/2048 lights.4, Could play the content in SD card.5, “SET” save operation, “MODE” change effect ... to connect controller.3, when pull out the SD card, please make sure that the power supply was ... or it will damage the programme in the SD card.4, usually, each 300 pcs RGB pixel lamps ... After programmed with special software and save into the SD card, you can make it show graphic, text, ...