Upgrade your existing hazardous location bay lights to energy-efficient LEDs. Choose a light that matches the model already in place—they’ll fit into your existing hood and connect to the wires already in your conduit. Safe to use in areas with combustible concentrations of gases, vapors, dust, and fibers, these lights are rated NEC Class I, II, and III.

These lights even stand up in wet and outdoor locations. Rated IP66 and IP67, they withstand washdowns and submersion in water. They’re also dust tight. For resisting salt water and other corrosive liquids, they’re UL marine listed and NEMA 4X rated. They’ll keep shining in extreme temperatures, from -40° F to 145° F.

Style B and C require an adapter (sold separately) to fit into Crouse-Hinds, Killark, and Mercmaster mounting hoods. Style B are rated IK08 for impact resistance against accidental bumps.

Mount these lights high on exterior walls to improve nighttime visibility and deter intruders. Each head adjusts to any angle, so you can aim the beam where you need it. These lights can be used in wet locations.

Select a light appearance to match your existing lighting. If you’re not sure what temperature you need, choose a light with a selectable light appearance. You can adjust the temperature with a switch.

Lights with a light sensor automatically turn on at dusk and off at dawn, helping to save power.

Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Color rendering index (CRI) is a measurement on a scale of 0-100 of how accurately the light from a bulb represents an object's true colors; the higher the number, the more natural the colors appear. Any CRI value over 80 will show colors true to life. Bulbs with a warm light appearance have yellow tones. Bulbs with a neutral light appearance are often used in workspaces. Bulbs with a cool or daylight appearance have white/blue tones and are good for inspecting. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

LED bulbs last longer and are more efficient than fluorescent bulbs. They generate little heat and withstand vibration. Socket-ready bulbs work with most instant-start electronic ballasts, but not all. For a full list of compatible ballasts select a part number and view product detail. Ballast bypass bulbs eliminate the need for a ballast so the socket must be wired directly to the power source.

Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).

Bulbs that cannot be sold to the areas listed exceed local regulatory limits on mercury and/or do not meet local efficiency standards.