Which type of luminaires should be used in areas that may be subject to shower spray?

Luminaires listed for wet locations are specifically designed to withstand moisture and direct water exposure, making them suitable for areas that may be subject to shower spray. These luminaires come with features such as sealed enclosures to prevent water from entering and can tolerate high levels of humidity and splashing water, which is common in bathrooms and shower areas.

In contrast, standard luminaires are not equipped to handle such conditions and can lead to safety hazards if used in areas exposed to water. Safety-rated luminaires may offer some protection but are not necessarily rated for direct water exposure. Luminaires listed for damp locations are also inadequate for this scenario, as they are designed to handle moisture in the air but not direct water contact. Therefore, using luminaires that have been specifically rated for wet locations is essential to ensure safety and functionality in environments likely to experience water spray.