AXEL OS is characterized by its modular structure that provides an efficient environments and customizable solution, able to cover all areas of a store:
shop windows and shelves, niches and central parts. The system is based on modular units with absolute flexibility.
The installation frames and headlights are separated, which leaves the designer the freedom to combine units and elements.

Castaldi Lighting offers the system in two sizes:
- AXEL OS4 (63mm wide)
- AXEL OS9 (93mm wide),
with individual units, double and triple rooms or in the form of linear light channel.

AXEL OS can be considered the ultimate lighting tool for future conceptions of shops and retail.