I contacted the company and after researching they told me that they did not sell controllers for these models. Their support was great just didn't get the answer I wanted. Has anyone experienced this problem and how did you correct it. I am a decent mechanic but electronics is foreign to me so changing a box internally to make it ain't gonna happen. I am setting up a new room and led's are spoken very highly of but if I can't control the brightness they are boat anchors to me.Thanks for reading and look forward to reply's.