Here you go some scketches based on your brief where you can ask for any changes or make any suggestions.
As you can see, they're pretty simple and clean, creating a distinctive wordmark, that can be used as a stand alone symbol to be engraved in the products with no problem. I like very much the entry #22, since the L from the workmark makes the word lighting be read, and look like the "I" is lightened :-)
I'm at your entire service if any sounds promising.
Kind regards,
Claudia