Vapor Tight Light Fixtures

An LED vapor tight fixture is a sealed luminaire designed to prevent moisture, dust, insects, and chemical vapors from entering the fixture housing and damaging the light source or driver. The housing is typically constructed from impact-resistant polycarbonate with a continuous gasket seal between the lens and housing body. LED vapor tight fixtures carry a minimum IP65 ingress protection rating and are UL Listed for wet or damp locations. They are the standard replacement for fluorescent strip lights and wrap fixtures in parking garages, food processing facilities, cold storage rooms, car washes, warehouses, and industrial spaces.

A standard LED strip light or shop light is an open or semi-open fixture with no ingress protection which means moisture, dust, and insects can enter the housing and damage the driver and LED modules over time. LED vapor tight fixtures are fully sealed with a gasketed polycarbonate lens, making them rated for wet locations (IP65 or higher). In damp or wet environments, using a non-sealed fixture is both a safety hazard and a code violation. Vapor tight fixtures also carry IK impact ratings that standard strip lights do not, making them appropriate for food processing, car washes, and other high-abuse applications.

IP65 is the minimum rating for most wet and damp location applications including parking garages, warehouses, utility rooms, and covered outdoor areas. IP66 is recommended for applications with direct high-pressure water spray, such as car wash equipment bays and food processing areas subject to hose-down cleaning. IP67 is specified where temporary immersion risk exists, such as in floor-level fixture installations in wet processing areas.

NSF/ANSI 2 is an independent third-party certification verifying that a fixture's materials, construction, and cleanability meet the food equipment safety requirements established by NSF International. NSF-certified vapor tight fixtures have housings and lenses made from food-safe materials that do not leach chemicals into food, are smooth and cleanable to prevent bacterial harboring, and are free of crevices where food particles can accumulate. NSF/ANSI 2 certification is required by regulation for fixtures installed in food zones and splash zones in USDA-inspected meat processing plants and FDA-regulated food processing facilities. It is strongly recommended, and often required by local health code, for commercial kitchen installations above food preparation surfaces.

Yes, but the fixture must be specifically rated for low-temperature operation. Standard LED vapor tight fixtures are typically rated for operating temperatures down to -20°C (-4°F), which covers most refrigerated cooler applications. Freezer and blast-chiller environments require fixtures rated to at least -40°C (-40°F). Low-temperature-rated fixtures use cold-weather LED drivers and thermal management designs that maintain stable lumen output and reliable starting at sub-zero temperatures.

Switching from a 2-lamp T12 8 ft 96W fluorescent fixture to a 45–55W LED vapor tight fixture can reduce energy costs by approximately $35–$50 per fixture annually at an electricity rate of $0.15/kWh based on 18 operating hours per day in a high-use industrial or commercial environment. In a facility with 75 fixtures, such as a warehouse, maintenance area, or parking structure, that can result in approximately $2,600–$3,750 in yearly energy savings before available utility incentives and rebates. Additional maintenance savings are realized by eliminating fluorescent ballast and lamp replacements. Bulbs.com offers complimentary lighting layout assistance, energy savings analysis, and rebate support for qualifying DLC-listed LED fixtures. Call 888-455-2800 or email customerservice@bulbs.com.

DLC stands for DesignLights Consortium maintains a Qualified Product List (QPL) that sets minimum standards for efficacy and performance. LED commercial vapor tights will be DLC listed but can have a variety of designations which can affect available rebates. Many of the fixtures we offer at Bulbs.com carry multiple designations includes stairwell and passageway, direct linear ambient, low-bay, high-bay, and fuel-pump canopy.

Yes, most commercial-grade LED vapor tight fixtures include 0-10V dimmable drivers as standard, supporting integration with occupancy sensors, vacancy sensors, daylight harvesting photosensors, and building automation systems. Some models include integrated occupancy sensors or plug-in sensor receptacles for tool-free installation. Pairing vapor tight fixtures with occupancy sensors in parking garages and warehouse aisles typically reduces lighting energy consumption by an additional 40–60%.

LED vapor tight fixtures support surface mounting directly to ceilings, concrete decks, or exposed structural joists using integrated mounting knockouts on the fixture body. Conduit mount configurations allow installation directly to electrical conduit runs. Optional accessories include chain mount kits, aircraft cable (V-hook) kits for pendant installation in high-bay applications, and T-bar grid adapters for suspended ceiling installations.

A vapor tight fixture (IP65+) seals against moisture and dust ingress but is not rated for environments containing flammable gases, vapors, or combustible dusts. Hazardous location fixtures, classified under NEC Article 500 and UL 844, are specifically engineered and certified to prevent ignition of flammable atmospheres. Class I, Division 2 fixtures are appropriate for locations where flammable vapors are handled but not normally present in ignitable concentrations (such as chemical storage rooms, spray booths, and oil and gas facilities). Class I, Division 1 fixtures are required where ignitable concentrations are present under normal operating conditions. Installing a standard vapor tight fixture in a classified hazardous location is a serious code violation and safety hazard.

A dedicated Bulbs.com account representative is available to assist contractors, facilities managers, food processing engineers, property managers, and electrical engineers in specifying the correct LED vapor tight fixture for any application. We can determine the appropriate fixture type (standard, NSF, cold storage, or hazardous location), correct size, lumen package, CCT, CRI, IP and IK rating, dimming protocol, and mounting configuration for your project. Our lighting experts provide free photometric lighting layouts, energy savings calculations with payback analysis, and rebate identification for DLC Premium listed fixtures in your utility territory. Additional benefits for commercial customers can include net 30 terms and volume discount pricing. Bulbs.com also offers BulbTrack to make reordering as simple as a click. Call Bulbs.com at 888-455-2800 or email customerservice@bulbs.com to speak with a commercial lighting specialist.