It's nuts, quite literally - loads of them

In the image shown there are 112 in total, all carefully welded together to make this lamp
 
An small rotary type dial switch takes care of the on/off, and the lamp features a 1.75m power cord
 
Supplied with a E27 bulb

​Height - 220mm
Width - 80mm

Polished and waxed to preserve it's appearance