What is a potential hazard associated with Class 4 lasers?

Class 4 lasers are categorized as high-power lasers, and they can pose significant hazards due to their output level. These lasers emit a high energy that can cause serious injury or damage to the skin and eyes upon direct or indirect exposure. The intensity of the laser beam can lead to severe burns or permanent eye damage, making safety precautions critical when working with them.

High-power output means that Class 4 lasers can engage in interactions that result in hazardous reflections, but the primary concern remains their potential to cause harm when the beam is directly aimed at either skin or eyes. It's essential for anyone working with Class 4 lasers to use appropriate protective eyewear and follow safety protocols to minimize the risks associated with their use.

In contrast, the other options do not accurately represent the dangers associated with Class 4 lasers, as they either underestimate the risks or mischaracterize the power output.