Lego GBC Rainbow Lift is a collection of 7 modules in 7 colors of the rainbow.
They are a variation of Stuarts lift module that exposes the inner working mechanism and shows that GBC can indeed be built in 7 colors of the rainbow.
These modules are set up for night running with each module having a custom Lego UV/Led lights, with the UV shining on the balls and the lego light passing through a transparent colored brick to color the module.
Videos of this module in operation
The Lego GBC Rainbow Lift modules pack into a single 24x18x10″/60x46x25cm bespoke cardboard box.