The LightRail 5 Complete 4 RPM Kit can move multiple crossbars with each
crossbar allowing indoor grow lights to travel side by side, and this
indoor growers kit has a zero to sixty-second adjustable time delay for
pausing the grow lamp at the end of each run. The time delay helps
promote even indoor plant growth from end to end and allows for equal
grow light-time for the entire run. The LightRail 5.0 Kit comes with a
LightRail 5.0 Drive Motor, one crossbar, instructions, mounting
hardware, and a 2-section 8' Rail, so it's long enough and ready for an
extra Add-A-Bar Kit to purchase as a second crossbar. Grow equipment,
especially indoor plant lights, should always be maximized and LightRail
is the most effective way to get the most out of your indoor grow
lights and grow equipment.