Assembly having a housing comprising a circuit board supporting a plurality of light emitting diodes

Assembly having a housing (1) comprising a circuit board (3) supporting a plurality of light emitting diodes (LED-1, LED-2) , characterised by at least one optical element (6) with a first light input surface (6a) optically connected to a first light emitting diode (LED-1), with a second light input surface (6c) optically connected to a second light emitting diode (LED-2), wherein said optical element (6) is configured for directing light coming for said first and second light emitting diodes (LED-1, LED-2) onto a common light output surface (6b), whereby both light emitting diodes (LED-1, LED-2) have a signalling function.