The Ackalyte Triangular Panel 5050 is a chain of addressable RGBW LEDs arranged in a triangular spiral configuration.
It employs the APA-109-RGBW-NW-4500K LED which has a data input waveform very similar to the WS2812B. However, as this type of LED also includes a natural-white element, there are 32 bits of data per LED instead of 24. All you need is a 5V power source and some data from an LED controller, and away you go!