A tiltable joint for a luminaire, preferably for an outdoor luminaire, the joint comprising : - a first joint portion comprising a joint member provided with an outer cylindrical surface section having an axis and opposing bearings aligned with said axis, said outer cylindrical surface section being provided with a first plurality of interengaging surfaces ; - a second joint portion comprising a joint housing provided with a pair of axially-aligned receiving surfaces , and an inner cylindrical surface provided with a second plurality of interengaging surfaces configured to interengage the first plurality of interengaging surfaces ; - wherein the joint member of the first joint portion is configured for being housed within the joint housing of the second joint portion , and the axis of the pair of axially-aligned bearings is substantially parallel to the axis of the pair of axially-aligned receiving surfaces ; - a first and second shaft portions extending in alignment with the pair of axially-aligned bearings , such that a pivot axis (PA) is defined; - a fixation means configured for: - enabling the engagement of at least a portion of the first plurality of interengaging surfaces with at least a portion of the second plurality of interengaging surfaces ; - enabling the release of said engagement such that a rotation movement of the joint housing relative to the joint member is enabled with respect to the pivot axis (PA) defined by the first and second shaft portions ; characterized in that the fixation means is further configured for fixing the first and second shaft portions to the second joint portion , wherein the first and second shaft portions are received by the pair of axially-aligned receiving surfaces . - a first joint portion comprising a joint member provided with an outer cylindrical surface section having an axis and opposing bearings aligned with said axis, said outer cylindrical surface section being provided with a first plurality of interengaging surfaces ; - a second joint portion comprising a joint housing provided with a pair of axially-aligned receiving surfaces , and an inner cylindrical surface provided with a second plurality of interengaging surfaces configured to interengage the first plurality of interengaging surfaces ; - wherein the joint member of the first joint portion is configured for being housed within the joint housing of the second joint portion , and the axis of the pair of axially-aligned bearings is substantially parallel to the axis of the pair of axially-aligned receiving surfaces ; - a first and second shaft portions extending in alignment with the pair of axially-aligned bearings , such that a pivot axis (PA) is defined; - a fixation means configured for: - enabling the engagement of at least a portion of the first plurality of interengaging surfaces with at least a portion of the second plurality of interengaging surfaces ; - enabling the release of said engagement such that a rotation movement of the joint housing relative to the joint member is enabled with respect to the pivot axis (PA) defined by the first and second shaft portions ; - enabling the engagement of at least a portion of the first plurality of interengaging surfaces with at least a portion of the second plurality of interengaging surfaces ; - enabling the release of said engagement such that a rotation movement of the joint housing relative to the joint member is enabled with respect to the pivot axis (PA) defined by the first and second shaft portions ; <EOS>