Lighting device

Lighting device comprising:

• an electrically-conductive support structure;
• and
• a plurality of elementary lighting modules fastened to the support structure, each elementary module comprising a printed circuit board and, assembled on the printed circuit board, a LED assembly and an electronic circuit for powering and controlling the LED assembly,
• wherein, in each elementary module, the printed circuit board of the module comprises at least one reference terminal, the reference terminals of the printed circuit boards of the different elementary modules being electrically connected to one another via the support structure,
• wherein the elementary modules are arranged according to a plurality of columns, each comprising a plurality of elementary modules, each module comprising two power supply and control connectors, and the elementary modules of a same column being connected in a chain via their respective power supply and control connectors.