I bought two bitspower tochaqua notos rgb fans and I am new to the PC world. The fans work fine but not RGB is present. When buying the fans I assumed the fans would be controlled through a device or simply automatic. That was not the case. I cannot find a lot of info on these fans. Most stuff I find mentions a controller, which i dont have. how can i get these to light up? Do I need the controller? Nothing came with the fans so I am confused.