This quick guide will show you how to install the Arditi E27 Lampholders.
Ensure the cable is sticking out the top as required.
Take the bottom section of the lampholder and screw it onto the fixing point.
Take the ceramic connection unit and wire the cable in.
Once wired push the ceramic connection unit into the bottom section of the lampholder. Note how far down the connection unit goes its flush around the edge.
Finally take the skirt section of the lampholder and screw it onto the bottom part, note the clicking sound when tightening up this is the locking device. More information can be found below this article regarding the locking device.