Although it would seem that the domain .lighting would be intended for limited categories of people (producers and distributors of lighting systems, photographers, designers, architects), if we look beyond the obvious definition, illumination, we discover that lighting is a generic word with multiple meanings and therefore multiple uses for websites and online marketing activities.
Discover the services dedicated to the trademark owners, such as the Trademark Clearinghouse - TMCH (the only global database of registered brands authorized by ICANN), or the Domains Protected Marks List - DPML (block of the registrations of similar/equivalent domains of your brand in over than 200 of the new extensions).