Which type of luminaires should be installed in areas subject to shower spray?

In areas subject to shower spray, it is essential to use luminaires that are specifically designed to withstand moisture and potential water exposure. Wet location listed luminaires are constructed to endure the environmental conditions found in places like bathrooms, especially around showers, where they can be exposed directly to water. These luminaires are tested and certified to ensure that they can operate safely, preventing issues such as electrical shorts or failures due to moisture.

Using standard indoor-rated luminaires in such areas could lead to safety hazards since they are not built to resist the effects of water, which can cause serious damage and pose risks of electric shock. Outdoor-rated luminaires, while resilient to various weather conditions, are not necessarily designed for the specific challenges presented by indoor wet areas like showers. Decorative luminaires, while appealing in design, also do not guarantee the necessary protection against moisture unless they are explicitly rated for wet locations. Therefore, the use of wet location listed luminaires is the most appropriate and safe choice for installation in these specific areas.