Light Rail 3.5 Intelli-Drive Grow Light Mover W/ Extra Rail

Hello,
I have here a used Light Rail 3.5. 5Watts total. Date of Manufacture Jan 2010. It is in good working condition. It is screwed to a 2x4 which can be mounted anywhere. Screw into the wood to create the stops. It comes with a 3ft extension. In good condition. Comes and pictured. Thanks again.