... lamps for led channel letter 1,RGB shinning letters 2,RGB with IC 3,customized shapes & program 4, ... input Voltage, energy savingit is made from Full Color LED Pixel Light, with SD card controller, the channel ... input Voltage, energy savingit is made from Full Color LED Pixel Light, with SD card controller, the channel ... supply?A2: Firstly, as the voltage of the LED pixel lamp is 5V, so we should select ...