The Intellidrive Light Rail 3.5 is ideal for maximizing light distribution in rectangular growing areas. Order a motor + 6 foot light rail for a complete unit. The 6 foot rail can be expanded to 9 feet and has adjustable switch stops to enable various travel lengths. The Light Rail 3.5 Intelli Drive travels at approximately 2 feet per minute. An adjustable time delay allows your lamp to pause at each end of the track for 0-60 seconds. The Add-a-Lamp kit allows you to expand the system from 6' to 12', moving two reflectors in-line with one motor.