Abstract: A canopy for varying the height of a lighting fixture suspended from a ceiling or elevated support structure via the cable/cord supplying power to the lighting fixture. The canopy has a notched spool mounted non-rotatably to the ceiling or elevated support structure. The spool has a core part around which the power cable/cord is wrapped to change the effective length of cable/cord. A revolving hook bolt is connected to the spool such that the bolt can be rotated to face a notch through which the cable/cord has been inserted. The hook bolt has a rounded edge bump that the cable/cord passes through after exiting the notch. The edge bump is configured to securely retain the cable in a fixed position without slippage and to support the weight of the suspended lighting fixture in a secure slip-free manner.