Lighting columns with motorized mobile top platform

The products under study are lighting columns, structures to hold one or more lanterns on the top or edge, consisting of one or more parts: a pole, possibly an extension piece and a bracket. An electric motor to elevate the top structure is included. Other denominations for this product are light pole, streetlight, lamp post, streetlamp. 

Product are made of mainly steel and accessories, steel is obtained from sheet (coil) or tubes and galvanized with a zinc coating by an external company.

Lights are excluded