Area of Use. What is the difference between Dry, Damp and Wet Listed?
The UL standards define three types of locations for fixtures; Dry, Damp and Wet. It is important to check with your installing electrician the rating required prior to order.
Dry: This location is not normally subject to dampness, but ventilation should be adequate to prevent accumulation of moisture. Almost all indoor areas will be dry locations, including wall lighting either side of a sink in a bathroom. Notable exceptions are inside shower enclosures, saunas and steam rooms which will require a higher rating.
Damp: A damp location includes some outdoor areas, which have shielding from precipitation. Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture. Examples of such locations include partially protected locations under canopies, marquees, roofed open porches, and like locations, and interior locations subject to moderate degrees of moisture, such as some basements, some barns, and some cold storage warehouses
Wet: A wet location includes Installations under ground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather.
What is the difference between UL Listed and ETL Listed?
There is no difference for a consumer between ETL Listed and UL Listed.
UL 1598 is the technical standard for hanging, wall and gatepost lanterns. UL 153 is the technical standard for table, floor and desk lamps.
UL is both a technical standard and a certification body. ETL is a division of Intertek Testing Laboratories. Intertek ETL is, like UL, an Occupational Safety and Health Administration (OSHA) Nationally Recognized Testing Laboratory (NRTL). Both UL and ETL test and certify to the same UL standards (1598 and 153).
We have worked with the independent certification body ETL to ensure that our product is compliant with UL technical standards and our product is labelled with the ETL mark.