Remote control LED RGB to hardwired

I have an LED RGB floodlight that is remote controlled, but I would like to change to hardwired or customized remote control. The reason for this is that I would like to control multiple floodlights individually. When you buy them with a remote the remote changes them all at once. I would like individual control of each light. Any ideas where to start?

I would start by figuring out, in detail, how those things work exactly.