The model was created for smoothing in the 2014 version and saved in the earlier 2011.
There is also an OBJ format.
There are no third-party plugins, all elements are named after their own names.
For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured taking into account PBR,
Sizes
S_400 × 100 mm.
M_700 × 100 mm.
L_700 × 400 mm.
Link to the site_https: //www.lampatron.ru/cat/item/design-lamps-dots-slim/