Abstract: It is provided a lamp holding device (1) comprising a supporting element (14) made of an electrically insulating material and having a housing space (15). An electrically insulating hollow body (49 is disposed within the housing space (15) and is set to receive an end portion (3) of a lamp (2). Said hollow body (4) has a pair of electric contacts (7) each of which can be associated with a respective conductive element projecting from the end portion (3) of the lamp (2). Each electric contact (7) comprises first and second resilient counter-elements (9, 10) which are both movable between an opened position to enable passage of the respective conductive element and a constraint position to lock the conductive element. Each resilient counter-element has a contact surface (9a, 10a) adapted to abut onto a respective side wall of the conductive element.