Hi,
A friend of mine! Changed my ceiling landing light yesterday. All seemed good until the power was switched back on.
As soon as the power was back on, the light lite up. The hallway light and my landing light are operated by a dimmer switch down stairs. Upstairs those lights are operated by a standard switch.
Neither the dimmer of the switch have allowed me to turn the light on or off.
I have taken the liberty of taking a picture as to how it's currently connected. He assured me, that's how it was? I've now removed the bulb until the issue is resolved?