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Hazardous Location Ceiling Lights


These lights are UL listed or CSA certified for hazardous locations where flammable/combustible gases, vapors, and liquids may be present. They have a sealed lens and can be hardwired to operate on any of the voltages listed.
Styles 1-2 can be used where hazardous material occurs infrequently. They have built-in LEDs that last longer, are more efficient, and generate less heat than other light technologies. Style 1 are housed in durable stainless steel. Style 2 have an acrylic lens that won’t turn yellow over time.
Lights with a cool appearance highlight white/blue tones that are good for inspecting.
All are IP66 rated for protection from washdowns. IP67 rated lights can be briefly submerged. NEMA 4X rated lights protect their parts from corrosion.

Overall | ||||||||||||||
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Style | Lg. | Wd. | Ht. | Voltage | Light Appearance | Wattage | Housing Material | For Conduit Trade Size | Thread Type | Mounting Hardware Included | Environmental Rating | Specifications Met | Each | |
Fastener Mount | ||||||||||||||
1 | 24" | 4 3/4" | 7 1/4" | 120V AC, 208V AC, 240V AC, 277V AC | Cool (4,100K) | 27W | Stainless Steel | 3/4 | NPT | No | NEC Class I Division 2 Groups A, B, C, D; NEC Zone 2 Groups IIC, IIB, IIA; IP66; NEMA 4X; NEC Class II Division 2 Groups F, G | UL Listed, C-UL Listed, UL Marine Listed | 0000000 | 000000000 |

Overall | |||||||||||||
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Style | Lg. | Wd. | Ht. | Voltage | Light Appearance | Wattage | Housing Material | For Conduit Trade Size | Mounting Hardware Included | Environmental Rating | Specifications Met | Each | |
Fastener Mount | |||||||||||||
2 | 51 3/4" | 6 7/8" | 4 3/8" | 120V AC, 208V AC, 240V AC, 277V AC | Neutral (4,000K) | 54W | Fiberglass | 1/2 | No | NEC Class I Division 2 Groups A, B, C, D; NEC Zone 2 Groups IIC, IIB, IIA; IP66; IP67 | CSA Certified, CSA-US Certified | 0000000 | 0000000 |
Hazardous Location Ceiling and Wall Lights with Guard






Also known as jelly jar lights. These fixtures have a heat-resistant lens and a guard that protects the lens from breaking. They are CSA certified for hazardous locations where flammable/combustible gases, vapors, and liquids may be present. They are rated NEMA 4X for protection against corrosion and washdowns. Lights are sealed to keep moisture out. They can be hardwired to operate on any of the voltages listed. Some work with LED or incandescent bulbs (sold separately).
Styles 1, 2, 3, 5, and 6 can be used in environments where ignitable concentrations of flammable/combustible gases, vapors, and liquids or combustible dust occur infrequently, such as in the case of an accidental spill or failure of a ventilation system, and where combustible/ignitable fibers or flyings are present under normal operating conditions and/or during frequent equipment maintenance or failure. Rated for Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; and Class III, Divisions 1 and 2, these lights withstand acetylene, hydrogen, ethylene, propane, carbonaceous dusts, and nonconductive dusts.
Styles 4 and 7 can be used in environments where ignitable concentrations of hazardous material are present under normal operating conditions, and/or during frequent equipment maintenance or failure. Rated for Class I, Divisions 1 and 2, Groups C and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2, these lights withstand ethylene, propane, conductive or metal dusts, carbonaceous dusts, nonconductive dusts, and combustible/ignitable fibers or flyings.
O'all | Mounting Holes | ||||||||||||||||
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Style | Dia. | Ht. | Voltage | Bulbs Included | No. of Bulbs Required | Screw-In Base Size | Wattage | Max. Wattage per Bulb | Housing Material | For Conduit Trade Size | Thread Type | Mounting Hardware Included | No. of | Dia. | Specifications Met | Each | |
Built-In LED Bulbs | |||||||||||||||||
Ceiling Thread On | |||||||||||||||||
1 | 4 1/2" | 8 1/2" | 120V AC, 277V AC | Built-In LED | __ | __ | 15W | __ | Polyester Plastic | 3/4 | NPT | No | __ | __ | CSA Certified, CSA-US Certified | 0000000 | 0000000 |
2 | 4 1/2" | 8 1/8" | 120V AC, 277V AC | Built-In LED | __ | __ | 15W | __ | Polyester Plastic | 3/4 | NPT | No | 2 | 5/16" | CSA Certified, CSA-US Certified | 0000000 | 000000 |
For Incandescent Bulbs | |||||||||||||||||
Ceiling Fastener Mount | |||||||||||||||||
2 | 4 3/4" | 10 7/8" | 120V AC, 277V AC | No | 1 | Medium (Standard Household) | __ | 150W | Fiberglass | 3/4 | NPT | No | 2 | 5/16" | CSA Certified, CSA-US Certified | 00000000 | 000000 |
4 | 7 1/2" | 14 3/8" | 120V AC, 208V AC, 240V AC | No | 1 | Medium (Standard Household) | __ | 150W | Aluminum | 3/4 | NPT | No | 4 | 5/16" | CSA Certified, MS16555-650, MS9321-9 | 0000000 | 000000 |
Ceiling Thread On | |||||||||||||||||
5 | 4 1/2" | 11 1/4" | 120V AC, 277V AC | No | 1 | Medium (Standard Household) | __ | 150W | Fiberglass | 3/4 | NPT | No | __ | __ | CSA Certified, CSA-US Certified | 00000000 | 000000 |
Hazardous Location Bay Lights

Use these lights in large, open areas such as warehouses and manufacturing spaces where the ceiling is up to 30-ft. high. They are ETL and C-ETL listed for Class I Division 2 Groups A, B, C, and D, Class II Divisions 1 and 2, Groups E, F, and G, and Class III Divisions 1 and 2 for use in environments where ignitable concentrations of acetylene, hydrogen, ethylene, and propane occur infrequently, such as in the case of an accidental spill or failure of a ventilation system. With built-in LEDs, these lights last longer, are more efficient, and generate less heat than other light technologies. They produce a neutral light appearance, which creates a balanced environment for general work areas. These lights produce a wide beam of uniform light. Lights can be hardwired to operate on any of the voltages listed. Thread onto 3/4 NPT conduit to suspend lights from the ceiling.
Overall | ||||||||||||||
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Bay Light Type | Lg. | Wd. | Ht. | Equiv. Metal Halide Bulb Wattage | Voltage | Brightness, lumens | Light Appearance | Wattage | For Conduit Trade Size | Thread Type | Gender | Mounting Hardware Included | Each | |
Built-In LED Bulbs | ||||||||||||||
High | 12 5/8" | 9 1/2" | 10 3/8" | 400W | 120V AC, 208V AC, 240V AC, 277V AC | 11,200 | Neutral (4,000K) | 80W | 3/4 | NPT | Female | No | 0000000 | 0000000 |
Explosion-Proof Linear Bay Lights
Safely light up chemical processing plants, mining operations, and other large areas where combustible gases and dust are present. These lights have an explosion-proof housing that contains sparks and flames, so they won’t react to nearby hazards. With a T4 classification, their surface temperature stays below 275° F to avoid igniting flammable substances. Because they’re totally sealed, they also work well in wet, dusty, and corrosive environments—they’re IP and NEMA rated, and UL marine listed.
Mount them to your ceiling or other surface with the included adjustable bracket. The bracket pivots, so you can aim the light where needed. To suspend them from your ceiling, combine a pendant mount and junction box (sold separately).
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Overall | Housing | ||||||||||||||
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Lg. | Wd. | Ht. | For Ceiling Ht. | Brightness, lumens | Light Appearance | Wattage | Voltage | Light Setting | Material | Color | Mounting Hardware Included | Environmental Rating | Specifications Met | Each | |
Built-In LED | |||||||||||||||
11 5/8" | 11 5/8" | 9 5/8" | 12'-25' | 8,400 | Cool (5,000K) | 60W | 120-277V AC | Dimmable | Aluminum | Gray | Yes | NEC Class I Divisions 1, 2 Groups C, D NEC Class I Division 2 Groups A, B NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA NEC Zone 21 Groups IIIC, IIIB, IIIA IP66 IP67 NEMA 4X IK08 | ETL Listed, C-ETL Listed, UL Marine Listed | 0000000 | 0000000 |
11 5/8" | 11 5/8" | 9 5/8" | 12'-25' | 11,200 | Cool (5,000K) | 80W | 120-277V AC | Dimmable | Aluminum | Gray | Yes | NEC Class I Divisions 1, 2 Groups C, D NEC Class I Division 2 Groups A, B NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA NEC Zone 21 Groups IIIC, IIIB, IIIA IP66 IP67 NEMA 4X IK08 | ETL Listed, C-ETL Listed, UL Marine Listed | 0000000 | 000000 |
15 3/4" | 11 1/4" | 10" | 12'-25' | 21,000 | Cool (5,000K) | 150W | 120-277V AC | Dimmable | Aluminum | Gray | Yes | NEC Class I Divisions 1, 2 Groups C, D NEC Class I Division 2 Groups A, B NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA NEC Zone 21 Groups IIIC, IIIB, IIIA IP66 IP67 NEMA 4X IK08 | ETL Listed, C-ETL Listed, UL Marine Listed | 0000000 | 000000 |
Retrofit Hazardous Location Round Bay Lights

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 A have mounting holes that align perfectly with Crouse-Hinds mounting hoods—no mounting adapter required.
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.



Overall | Housing | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Ht. | For Ceiling Ht. | Brightness, lumens | Light Appearance | Wattage | Voltage | Material | Color | Environmental Rating | Specifications Met | For Manufacturer | Each | |
Built-In LED | ||||||||||||||
A | 11 5/8" | 6" | Up to 12' | 3,300 | Cool (5,000K) | 28W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM | 0000000 | 0000000 |
A | 11 5/8" | 6" | Up to 12' | 4,400 | Cool (5,000K) | 38W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM | 0000000 | 00000000 |
A | 11 5/8" | 6" | Up to 12' | 5,500 | Cool (5,000K) | 48W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM | 0000000 | 00000000 |
B | 13 3/8" | 6 1/8" | Up to 12' | 3,500 | Cool (5,000K) | 28W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X IK08 | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 000000 |
B | 13 3/8" | 6 1/8" | Up to 12' | 4,750 | Cool (5,000K) | 38W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X IK08 | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 000000 |
B | 13 3/8" | 6 1/8" | Up to 12' | 6,000 | Cool (5,000K) | 48W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X IK08 | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
B | 13 3/8" | 6 1/8" | Up to 12' | 7,450 | Cool (5,000K) | 51W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X IK08 | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 7 3/4" | 10'-15' | 10,400 | Cool (5,000K) | 75W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 8 7/8" | 12'-25' | 13,600 | Cool (5,000K) | 93W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 8 7/8" | 12'-25' | 16,400 | Cool (5,000K) | 115W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 8 7/8" | 12'-25' | 20,100 | Cool (5,000K) | 145W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 8 7/8" | 12'-25' | 21,900 | Cool (5,000K) | 169W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |
C | 14 3/4" | 8 7/8" | 25'-35' | 26,050 | Cool (5,000K) | 210W | 120-277V AC | Aluminum | Gray | NEC Class I Division 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP66 IP67 NEMA 4X | CSA Certified, DLC Listed, UL 844, UL Marine Listed | Crouse-Hinds APM, CM, HPM, JM, PM, QM, TWM Killark VM Mercmaster LPA, LPC, LPS, LPWB | 0000000 | 00000000 |

Overall | Housing | ||||||
---|---|---|---|---|---|---|---|
Mounting Location | Dia. | Ht. | Material | Color | Mounting Hardware Included | Each | |
For Crouse-Hinds | |||||||
Ceiling | 13 3/8" | 2 1/4" | Aluminum | Gray | Yes | 0000000 | 0000000 |
Wall | 13 3/8" | 2 1/4" | Aluminum | Gray | Yes | 0000000 | 000000 |
For Killark | |||||||
Ceiling, Wall | 13 5/8" | 2 1/4" | Aluminum | Gray | Yes | 0000000 | 000000 |
For Mercmaster | |||||||
Ceiling | 13 3/8" | 3 1/8" | Aluminum | Gray | Yes | 0000000 | 000000 |
Wall | 13 3/8" | 2 3/4" | Aluminum | Gray | Yes | 0000000 | 000000 |
High-Temperature Hazardous Location Ceiling Lights

Built for hot, hazardous areas such as steel mills and refineries, these lights work in temperatures up to 212° F. Rated NEC Classes I and II, they’re safe to use where there are ignitable concentrations of flammable or combustible gases, vapors, liquids, and dust. Rated IP67 and NEMA 6, they’re sealed against humidity, washdowns, and even temporary submersion. They’ll also stay sealed in dusty conditions.
Mount these lights with the included bracket. It tilts to direct light where you need it.
These lights last at least a year when used at 212° F continuously. And at 131° F, they’ll last almost 7 years.
Hazardous location environmental ratings indicate where manufacturers have included safety features in products to facilitate their safe use in hazardous environments. Before selecting a product for a hazardous location, ensure it is rated for your environment.
Overall | Housing | Mounting Holes | ||||||||||||||
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Dia. | Ht. | Brightness, lumens | Light Appearance | Wattage | Voltage | Temp. Range, °F | Material | Color | Mounting Hardware Included | No. of | Dia. | Environmental Rating | Specifications Met | Includes | Each | |
Built-In LED | ||||||||||||||||
9 3/16" | 6 1/2" | 6,000 | Cool (5,000K) | 60W | 120V AC | -40° to 212° | Aluminum | Gray | No | 4 | 5/16" | NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; IP67; NEMA 6 | UL Listed | Adjustable Bracket | 00000000 | 000000000 |