This wall-mounted task lamp by German studio 45 Kilo is adjusted simply by sliding a leather loop along the arm that supports its shade.

A diagonal wire spanning from the top of the wall-mount to the head of the Hallo Light allows the arm to rest at 90 degrees, but sliding the leather loop along traps the wire against the arm and brings it closer to the mounting. The designers were inspired by the simplicity of the classic Potence light by Jean Prouvé and set out to make an adjustable version.



