What lighting feature is required in areas dealing with hazardous chemicals?

Bright white lighting is essential in areas dealing with hazardous chemicals because it enhances visibility and helps ensure that all hazards are clearly visible to operators and employees. This type of lighting minimizes shadows and provides a higher level of illumination compared to other lighting options, which is critical for maintaining safety in environments where chemicals are handled. Bright white lighting also supports better color differentiation, allowing individuals to notice color-coded safety signs and labels more effectively, which is vital for identifying potential risks and taking appropriate safety measures.

The other options, while they have specific uses in various contexts, do not provide the same level of visibility and clarity required for safety in hazardous chemical areas. Dimmable lighting, for instance, might lead to low visibility when full brightness is needed. Emergency backup systems are important for power outages but do not inherently improve visibility during normal operations. Fluorescent tubes may not provide as bright or focused illumination as required in such critical environments.