The Robostik is used for hanging a horizontal reflector from a LightRail. Without the Robostik, your reflector can turn and be unstable when in motion.
Fixing a RoboStik to your light rail will stabilise and support your grow light when in action. This simple looking yet ingenious metal rod is horizontally attached across the motor unit to give you two points from which to hang a light rather than one.
Consequently the light remains in the same position whilst moving along the rail instead of occasionally rotating as can sometimes be the case.
Using a Robostik with your light rail ensures that your plants all get to enjoy the same amount of light and comes highly recommended.
This product is an add on to the LightRail