What does the abbreviation "SWD" mean in lighting fixtures?

The abbreviation "SWD" in lighting fixtures stands for "Suitable for Wet Locations." This designation indicates that the lighting fixture is designed to operate safely in environments where it may be exposed to moisture or wet conditions, such as outdoors, in showers, or in other areas with high humidity. Fixtures labeled as suitable for wet locations are built with materials and construction methods that protect against water intrusion, ensuring both safety and functionality in these challenging conditions. Understanding this rating is crucial for selecting appropriate lighting fixtures for specific environments, particularly where water exposure is a risk.