Yes. They are different now, as we have new light units which use two RGB LED's inside the ball. No resistors are required for 5v operation, but they do require an LED-Wiz for control, due to the higher current requirement. The only caveat is that the end user will need to restrict the turning of the shaft, or install a SlipWire to prevent the wires from twisting.
They are $29.95 each, hollow stainless shafts, compatible with Super-Pro, Pac-Pro, Super, Competition, Happ Rotary and Ms.Pac Reunion joysticks. Available upon request for now.