Five identical profiles made from three-millimetre-thick aluminium are held together by three black silicon bands, one at the top and two at the bottom.
All the profiles for one EXTL Light can be cut from the same bar of extruded aluminium, dissected at angles so the two styles can be made from one length.
"This highly engineered solution effectively demonstrates both the efficiency and the precision of this time-honoured industrial process," says Deadgood.
The lights are available in two slightly different styles, one of which has a wider opening at the base than the other. The surface of the aluminium is finished in either a matt black, gold or silver anodised metal coating.
Deadgood launched the product at 100% Design in London last month.
We've recently written about an adjustable lamp with a magnetic concrete base and a collection of lamps with empty baskets for bases that can be filled with various heavy objects. See all our stories about lamps.
Sign up for a daily roundup
of all our stories