I know at the hydroponic shop they have a pole with a wheel on it, the pole is connected to the railing, then it latches on to another reflector and itll move both of em at the same time! u can easily run two reflectors on the same motor with that. Im not quite sure on three though, try to find that pole and i bet u could pull it off! mine is screwed tight into my ceiling, right into the studs, so i could prolly hold as many reflectors as i wanted! Good Luck!