Consists of 40 5050 LEDs; Built-in control chip, only 1 IO port can control multiple LEDs; Built shaping circuit in the chip, signal distortion won't be accumulated and the signal will be displayed stably; RGB color and 160, 000 true colors display; Scanning frequency: >= 400Hz/s; Serial interface, can receive data and decode with one signal cable; Refresh rate: 30fps; The series in low speed mode is not less than 512 dots; Data receiving & transmitting speed is up to 800Kbps; High-brightness LEDs; Can display different cool patterns and flashing effect through the Arduino control.