The invention provides a lighting device element (100) comprising (i) at least one shaped element (120) selected from the group consisting of a
pipe-like shaped element (120,119) and a rod-like shaped element (120,129), (ii) one or more functional elements (180) selected from the group consisting of a
light source (10),
electronics (20) for a
light source (10), a
heat sink (1401) and
optics (30) for a
light source (10), and (iii) a support (140) for the one or more functional element (180), wherein the lighting device element comprises at least said
optics as functional element, wherein the lighting device element (100) comprises at least two monolithic bodies (170), each monolithic body (170) comprising at least part of the support (140) and at least part of the
optics (30), with said at least two monolithic bodies (170) providing thereby said support (140) and said optics (30), wherein (a1) at least part of the support (140) and (a2) at least part of the one or more functional elements (180) are accommodated within and / or around the shaped element (120); wherein the support (140) and the one or more functional elements (180) are coupled; wherein (b1) the support (140) comprises at least part of a fastening material (145) and / or (b2) a support assist (160), at least partly configured within and / or around the shaped element (120), comprises at least part of the fastening material (145) and the support assist (160) comprises a
receptor opening (169) hosting at least part of the support (140); wherein adjacent to a shaped element wall (121) of the shaped element (120) the fastening material (145) comprises (c1) an indentation (147) and (c2) part of the fastening material (145) is in pressed physical contact with said shaped element wall (121) and / or protruding into said shaped element wall (121) via which the support (140) is locally fixed to the shaped element (120).