Alu T bar 1,47 meter

Alubar at 1.47 meters with bolts, nuts, and a 28mm spigot.

Alubar is designed to accommodate 4 lights on a lighting stand. The 28mm spigot fits into the lighting stand, and then your lights are mounted on the aluminum bar, hanging out on each side of the stand.
Alubar is also commonly referred to as a T-bar and is commonly used for portable lighting systems for events. This applies to schools, touring theater performances, and various other events.
The aluminum bar also has extra holes, allowing you to attach more than 4 lights if the lights are small enough for it.