Metallic light installation piece (South Kensington SW7)

I am not sure if it is working as it was given to us as an art piece and we would now like the space for something else but all of the electrical wiring at the back and small lights in the individual compartments are in place. There is one small tarnish in a piece of metal missing from the corner, otherwise it is a wonderful statement piece for the home or workplace. Collection from South Kensington. Thank you.