What kind of light is the kitchen? Can the old ceiling lamp be installed?
Because the aluminum plate is directly buckle in the keel of the gap, if too heavy, then a long time by gravity, and so on to fall off.
But as many will be out, this has not done the experiment, not clear, but according to the general buckle buckle degree, the kind of no more than 500g of the ceiling should be no problem.
Vintage ceiling lamps, if not heavy case, you can directly with self-tapping screws on the aluminum plate. If it is too heavy that do not install.