A genuine Light Rail product, quality constructed in the USA and made to last and that is under continuous use. Only Light Rail performs over many years like a workhorse with the power and endurance for any grow light weight. Beware of cheaply made imitations. Details: The Light Rail RoboStik is 24 inches long or 60 cm and is primarily used to turn a grow light 90 degrees from the direction of travel. It can also be used to get the grow light closer to the Light Rail Motor for tight vertical spaces. And it can be used as a general light stabilizer. If used under the Aux Trolley of an Add A Lamp Kit, an extra small part is needed, the Add A Lamp to RoboStik Hardware. General info.