Kit 3 is suitable for 2 lights running in line with the 4 metre rail.

The globe length will be in line with the rail.

Prefer globes mounted at 90 degrees to rail?

Then purchase appropriate size Adjustabar (crossbar) which

can be clamped on to pushrod.

Comes complete with:

4 metre aluminium rail (2 x 2 metre with joiners and hardware)

2 metre  Adjustabar pushrod kit with 4 eye bolts to hang 2 lights.

Motor with variable time delay, 0 - 60 seconds