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90 Watt Round High Temperature Explosion Proof LED Light | 9900 Lumens | Class 1 Div 1 | 5000K | 120V or 277V | Rated to 212F

SKU: MLLG-E-EXPLC-90-50-C1D1-HT100 Web ID: 2791
Starting at: $1,492.00
Built to Order 6 Weeks

This 90W fixture is well suited to hazardous and high-temperature installations, with UL 844 classifications across Class I, II, and III locations and operation from -40F to 212F. Its 9,900-lumen, 120-degree distribution can provide broad illumination while replacing a 250W metal halide. IP66 protection, wet-location and marine suitability, copper-free aluminum housing, and yoke or 3/4 in NPT pendant mounting make it practical for paint booths, industrial process areas, and marine environments.

Dwayne Kula | President, CTO and Founder

Product Specifications

UL Listed - Verified for Electrical Safety and PerformanceClass 1 Division 1 - UL844 Certified for Hazardous LocationsClass 1 Division 2 - UL844 Certified for Explosive Atmospheres5 Year Unlimited Usage Warranty

UL Specs

  • UL 844 Hazardous Locations
  • Class I, Division 1, Groups C,D
  • Class I, Division 2, Groups A, B, C, D
  • Class II, Division 1, Groups E, F, G
  • Class II, Division 2, Groups F, G
  • Class III
  • UL 1598 Suitable for Wet Locations
  • UL 1598A Marine Outside Type
  • ABS
  • Driver on Board (DOB) Design

Key Features

BrandLED Lighting Supply
Watts90
Lumens9900
Lumens Per Watt110
Replaces250 Watt Metal Halide
Voltage120V or 277V
Color Temperature5000K
CRI70+
DimmingNo
Beam Angles (Std)120°
OpticsTempered Glass Lens
Lifespan50,000 (L70) hours
MountingYoke or 3/4 in NPT Pendant
Fixture ColorGray
Frequency (Hz)50/60
Power Factor>.95

Durable Construction

HousingCopper Free Aluminum
IP RatingIP66
Operating Temperature-40°F to 212°F
CertificationsUL
Warranty5 years

Measurements

Dimensions (in)16 X 13.5
Weight (lbs)39

Product Lighting Layout Estimator

Use this estimator to calculate approximate fixture count, spacing, and average foot-candles for a simple rectangular space using the selected LED fixture. Enter your room dimensions, mounting height, target foot-candles, light loss factor, and room/layout condition to generate a preliminary lighting layout. When IES photometry is available, workplane height and room reflectance controls are shown.

Project Inputs

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Estimated Results

Fixtures --
Layout --
Estimated Avg FC --
Approx. Spacing --
Fixture Offset --
Calculation Method: --
Top-Down Fixture Layout Fixture positions and estimated floor light levels
Lower estimated FC Near target Higher estimated FC

Estimated average foot-candles are preliminary and should be verified with a lighting plan for project-critical applications.

Room / Layout Condition: This field is used only when usable IES photometry is not available. In fallback mode, it acts as a simplified room utilization factor for reflectance, fixture distribution, racking, obstructions, and how much fixture light reaches the work area. Open / light-colored spaces use 0.90, typical warehouses or shops use 0.75, racked or obstructed spaces use 0.60, and dark or complex spaces use 0.45. When IES photometry is active, this field is hidden and the estimator uses the selected workplane height, LLF, and simplified reflectance adjustment instead.

Photometry / Simulation Note: When usable IES photometry is available for the selected fixture, this estimator uses the fixture’s IES candela data, selected workplane height, light loss factor, and simplified reflectance adjustment to estimate fixture count, average foot-candles, and visual light distribution. The reflectance adjustment is a conservative approximation and is not a full zonal-cavity, radiosity, or professional photometric room calculation. When IES photometry is not available, the estimator uses a simulated beam model based on lumens, mounting height, room/layout condition, light loss factor, and beam angle.

Preliminary Estimate Only: This estimator is intended for simple square or rectangular spaces and should be used as a planning aid, not a final photometric lighting plan. Actual light levels may vary based on fixture optics, selected IES file, mounting conditions, workplane height, ceiling height, surface reflectance, obstructions, controls, voltage, installation conditions, and site-specific requirements. Project-critical applications should be verified with a formal lighting plan.

Need Verified Light Levels?

This estimate is a starting point. Warehouses, industrial facilities, hazardous locations, sports areas, schools, healthcare spaces, public areas, and code-sensitive projects may require a reviewed lighting layout before purchase or installation.

Estimator Version 2.9.21

Product Overview

This 90-watt round high temperature explosion proof LED light delivers 9,900 lumens at 5000K for classified industrial areas operating at elevated temperatures. It is rated for operation from -40F to 212F and uses a copper free aluminum housing with a tempered glass lens.

The fixture is configured for high temperature facility lighting, industrial furnace area lighting, steel mill lighting, foundry lighting, power plant and energy site lighting, and nuclear facility lighting. It can replace a 250-watt metal halide fixture where the classification, voltage, mounting, and temperature requirements match the product ratings.

Core Performance and Output

The fixture produces 9,900 lumens at 90 watts, delivering 110 lumens per watt. The 5000K color temperature and 70+ CRI support industrial task visibility in high temperature operating areas.

A standard 120 degree beam angle provides broad distribution from the round fixture body. At lower mounting heights, 9,900 lumens may produce more light than required; at higher mounting heights, layout and target light levels determine uniformity.

The fixture operates on 120V or 277V at 50/60 Hz and has a power factor greater than 0.95. It uses a driver-on-board design and is not dimmable.

Adjustability and Control Options

This fixture is available in 120V or 277V configurations. Confirm the available branch voltage before installation.

No dimming capability is specified for this model. The 120 degree distribution is the standard beam pattern.

Longevity and Reliability

The LED system is rated for 50,000 L70 hours. L70 indicates the point at which light output is expected to reach 70 percent of initial output.

The operating temperature range is -40F to 212F. This range supports installations where ambient heat is a primary fixture selection factor.

Build Quality and Physical Characteristics

The housing is copper free aluminum with a gray finish. A tempered glass lens protects the optical assembly, and the fixture carries an IP66 rating.

The fixture measures 16 by 13.5 inches and weighs 39 pounds. Mounting options are a yoke mount or a 3/4 inch NPT pendant mount.

Where This Product Fits Best

This fixture fits classified high temperature industrial areas where elevated ambient temperature, dust, gas, vapor, or marine outside exposure conditions must be considered with the listed ratings.

  • industrial furnace area lighting
  • foundry lighting
  • steel mill lighting
  • power plant and energy site lighting
  • nuclear facility lighting
  • kiln lighting
  • glass manufacturing lighting

The IP66 enclosure, wet location suitability, and operating temperature rating support demanding industrial conditions. Final placement must match the listed UL hazardous location classifications and the local environmental conditions.

Installation and Long-Term Use

The yoke mount provides a surface-mounted installation option, while the 3/4 inch NPT pendant mount supports conduit-mounted installation. The mounting structure must support the 39-pound fixture weight.

Mounting height, aiming, and fixture layout should be established around the work area and required light levels. Verify voltage selection, hazardous location classification, and ambient temperature before energizing the fixture.

How This Fixture Is Commonly Used

In industrial furnace area lighting, foundry lighting, steel mill lighting, and kiln lighting, fixtures are positioned to provide broad coverage while keeping the fixture within its rated ambient temperature range. Yoke mounting allows directional aiming, while pendant mounting places the fixture below the mounting structure.

Layouts typically use the 120 degree distribution for general area coverage across high temperature facility lighting and power plant and energy site lighting. Wider spacing can reduce fixture count, but it can also reduce uniformity between fixtures.

Safety, Certifications, and Warranty

UL 844 Hazardous Locations. Class I, Division 1, Groups C and D. Class I, Division 2, Groups A, B, C, and D. Class II, Division 1, Groups E, F, and G. Class II, Division 2, Groups F and G. Class III.

UL 1598 Suitable for Wet Locations. UL 1598A Marine Outside Type. ABS. The fixture includes a 5-year warranty.

Frequently Asked Questions

Q: What light output does this fixture provide?

A: This fixture produces 9,900 lumens at 90 watts, with an efficacy of 110 lumens per watt.

Q: What voltages are available?

A: The fixture is available in 120V or 277V configurations and operates at 50/60 Hz.

Q: Can this fixture be dimmed?

A: No. This fixture is not dimmable.

Q: What mounting options are provided?

A: The fixture is available with a yoke mount or a 3/4 inch NPT pendant mount.

Q: What operating temperature range is listed?

A: The listed operating temperature range is -40F to 212F.

Application Questions and Clarification

Q: Is this fixture suitable for foundry lighting?

A: Foundry lighting is a listed application. Confirm the ambient temperature, voltage, mounting method, and hazardous location classification for the installation area.

Q: What should be reviewed for industrial furnace area lighting?

A: Review the -40F to 212F operating temperature range, available voltage, mounting option, and applicable UL hazardous location classification.

Q: Can the fixture be used for glass manufacturing lighting?

A: Glass manufacturing lighting is a listed application. Fixture placement must remain within the stated operating temperature range.

Web ID: 2791

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