The all new LightRail 4.0 AdjustaDrive is the newest linear light mover available from Gualala Robotics Inc. With both a 0 to 60 second adjustable time delay for promoting even growth from end to end, and a two to four feet per minute adjustable speed control that covers a wide range of lamp intensities and travel distances. The all new LightRail 4 AdjustaDrive from Gualala Robotics Inc., designed and manufactured in the USA is the ultimate in light mover control and is compatible with all LightRail 3.0 and 3.5 rails and accessory items. This item is packed in KIT form and comes complete with drive motor, easy to assemble 2 meter rail, mounting hardware and instructions. It is also covered by a 2 year manufacture's warranty. This product does include the rail. If you don't need a rail, please refer to LightRail 4.0 AdjustaDrive Motor.