Which of the following statements about lighting installation is true?

The statement regarding the installation of lighting that is accurate is that it can be installed closer than 5 feet above the floor level if it is protected from damage. This reflects principles found in electrical codes and standards, which recognize the importance of proximity to the ground versus the need for protection against potential hazards. When lighting fixtures are positioned at lower heights, ensuring that they are shielded from impact or physical damage is crucial for safety and compliance.

In contrast to this, the minimum height requirement mentioned in the other statements does not universally apply, as specific applications and environments can allow for different standards. The claim that installations must be at least 10 feet above the ground is not a blanket requirement and can vary based on the type of installation and its usage context. Furthermore, stating that lighting cannot be installed in residential settings is inaccurate, as residential lighting is a common and essential aspect of home design. Lastly, while having a licensed electrician perform the installation can be important for safety and compliance with local codes, it is not an absolute requirement for all types of installations, depending on the jurisdiction and project specifics.