LightRail 4.20 AdjustaDrive Kit comes complete with a variable speed LightRail 4.0 AdjustaDrive Motor, a two-piece 2 meter (6’6”) Rail, an Add A Lamp Kit with another 2-meter Rail, Push/Pull Rod, Auxiliary Trolley, instructions and hardware for moving two lights with the enclosed Motor. In addition, this indoor grow Kit comes with pre-installed Extreme Duty Trolley Wheels rated to 60 lbs, and these wheels have a lifetime warranty! Move two lights along 4 meters (12’) of Rail and all from one Kit box – the LightRail 4.20 – With both a 0 to 60 second adjustable time delay for promoting even growth from end to end plus the added feature of two to four feet per minute adjustable speed control that covers a wide range of lamp intensities and travel distances, LightRail 4.20 is great for customers who want that additional control. LightRail 4.20 will move any grow lights/ any hoods, multiple sizes and weights and is a scalable system where up to three indoor grow lights can move in-line with the use of one Motor. LightRail is just right for any indoor grow equipment set up including indoor grow light systems, seasonal greenhouse lighting, all season greenhouse grow lights, grow tent set ups and commercial grower facilities.