Adapter for pendant lights for built-in diameter 68mm aluminum turned

Often there is a lack of a power outlet in a blanket with recessed lights, on which a pendant lamp can be mounted. The pendulum adapter can be inserted into boreholes with a diameter of 68 millimeters, so that it is easy to connect a pendulum. The cable is simply led through the hole in the middle and connected to the power grid in the cavity in the ceiling.