Hello I bought a set of DeepCool fans and it did not come with a controller for the RGB. How do I control the lighting?

Please make sure your motherboard has a compatible 12V RGB 4-pin header. Once that is confirmed, you can either plug them into an RGB hub (if your fans set came with one), or daisy chain the fans together (the RF120M has male and female connectors to accomplish this task). Use the RGB Sync adapter cable, and plug the corresponding 4 pin connector into the RGB header on your motherboard and the other end to the hub (or last fan of the daisy chain). Please note that you should have the arrow on the connector pointed to the 12v pin (1st pin). From here, you would use the RGB software made by your motherboard manufacturer.