The model was created 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 adjusted for PBR
Sizes
S (6 + 3 lamps) Ø 80 × 14.5 cm
Suspension length 100 cm
Ceiling mount Ø 22 cm
Shade Ø 10 cm
M (6 + 3 lamps) Ø 100 × 14.5 cm
Suspension length 100 cm
Ceiling mount Ø 22 cm
Shade Ø 10 cm
Link to https://www.lampatron.ru/cat/item/design-lamps-chance/