E26 black bakelite lamp holder

Our lamp holders have a safety feature, which means that once put together, they cannot be unscrewed any more. This is to ensure you don’t undo the lamp holder when changing the bulb and give yourself a nasty electric shock! To attach a power cord to the lamp holder, you need to unscrew the base first. To do this, you have to push down the retention pin inside the lamp holder (e.g. with a screwdriver) and unscrew the upper ring.