I have a recessed light that I want to change to a chandelier. There is
a large "cup" in the ceiling that holds an indoor flood light
recepticle which is suspended within the cup by springs. I bought the
chandelier which has a metal mounting "strap" that is supposed to
attach to an outlet box in the ceiling by machine screws. Of course the
outlet box in this case does not exist. Is there any type of insert
that can be installed in the existing cup that will allow me to attach
an outlet box or something similar that the mounting strap can be
attached to securely?

Thanks in advance,
Ben