270 / 340 / 400 Wattage Adjustable High Bay Linear | 41600 to 56100 Lumens | 4000K / 5000K Adjustable | 100-277V | 3 Foot 8 Inches

SKU: MLLG-WL-LED-HBLIN6-4-400-CC Web ID: 2123
Starting at: $292.45

Availability: 843 In Stock Ships 2-3 Days

This high bay linear LED fixture is a strong choice for warehouses, manufacturing facilities, and distribution centers needing reliable, high-output lighting with flexibility. Its adjustable wattage (270, 340, or 400 watts) and selectable color temperature (4000K or 5000K) allow you to tailor light levels and appearance to specific tasks or changing requirements. The 90-degree beam angle delivers focused illumination ideal for high bay layouts, while the polycarbonate lens and galvanized iron housing ensure durability in demanding environments. UL listing, 70,000-hour lifespan, and a 5-year warranty support long-term use. It is not rated for wet or outdoor locations.

Dwayne Kula | President, CTO and Founder

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Product Specifications

UL Listed - Verified for Electrical Safety and PerformanceRebate Eligible - Qualifies for Energy Incentive Programs5 Year Unlimited Usage Warranty

Key Features

Brand LED Lighting Supply
Watts 270 | 340 | 400
Lumens 41600 | 50000 | 56100
Lumens Per Watt 150
Replaces 1000 or 1500 or 2000 Watt Metal Halide
Voltage 100V-277V
Color Temperature 4000K or 5000K
CRI 80+
Dimming 0-10V
Beam Angles (Std) 90°
Optics Polycarbonate Lens
Lifespan 70,000 hours
Mounting Chain-Cable
Mounting (Opt) Pendant or Surface
Fixture Color White
Frequency (Hz) 50/60
Power Factor .98
THD 20% Max

Durable Construction

Housing Galvanized Rolled Iron
Operating Temperature -4°F to 122°F
Certifications UL | Rebate Eligible
Warranty 5 years

Measurements

Dimensions (in) 44.2 L X 10.2 W X 1.8 H
Weight (lbs) 10
Cord Length No Cord

Features/Accessories

  • Color Adjustable
  • Wattage Adjustable

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

Loading fixture information...

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 2.9.20

Product Overview

This adjustable linear LED high bay provides 270W, 340W, or 400W output selection with 4000K or 5000K color temperature selection. It is configured for high-output interior lighting where a linear fixture profile and broad 90 degree distribution are required.

The fixture delivers up to 56,100 lumens and can replace 1000W, 1500W, or 2000W metal halide fixtures. Its 44.2-inch linear body suits chain-cable mounting, with pendant and surface mounting available as options.

Core Performance and Output

This linear high bay produces 41,600, 50,000, or 56,100 lumens at 150 lumens per watt. Wattage selection allows output to be set at 270W, 340W, or 400W without changing the fixture.

The standard 90 degree beam angle provides a broad distribution for open layouts and aisle patterns. Higher output can reduce fixture count in a layout, but it can produce excessive light at lower mounting heights.

The fixture operates on 100-277V, 50/60Hz power with a 0.98 power factor and 20 percent maximum THD. The 80+ CRI output is available in 4000K or 5000K.

Adjustability and Control Options

Field-selectable wattage provides three output settings: 270W, 340W, and 400W. Field-selectable color temperature provides 4000K and 5000K settings.

0-10V dimming is included for systems using compatible 0-10V controls. Dimming can be used to reduce output after installation when the selected wattage setting provides more light than the finished layout requires.

Longevity and Reliability

This fixture has a rated lifespan of 70,000 hours. The five-year warranty covers the fixture within its stated warranty terms.

The listed operating temperature range is -4F to 122F. Long-term performance depends on maintaining operation within that range and using the fixture on the specified 100-277V supply.

Build Quality and Physical Characteristics

The housing is galvanized rolled iron with a white finish. A polycarbonate lens protects the optical assembly.

The fixture measures 44.2 inches long, 10.2 inches wide, and 1.8 inches high. It weighs 10 pounds and is supplied without a cord.

Chain-cable mounting is standard. Pendant and surface mounting are available options, allowing the mounting approach to match the installed ceiling structure and layout.

Where This Product Fits Best

This linear high bay fits high-output interior lighting layouts that use long fixture rows, open ceiling structures, or defined aisles. Its adjustable output supports projects that need different light levels within the available 270W to 400W range.

  • warehouse aisle lighting
  • distribution center lighting
  • manufacturing facility lighting
  • storage facility lighting
  • retail warehouse lighting
  • commercial interior high ceiling lighting

The fixture is listed for operation from -4F to 122F. Final placement should account for mounting height, selected wattage, target light level, and the 90 degree beam distribution.

Installation and Long-Term Use

Chain-cable mounting is the standard installation method. Pendant and surface mounting options allow the fixture to be installed where the supporting structure and selected mounting arrangement require a different approach.

The fixture has no cord, so branch-circuit connection must be planned at the installation point. Verify the available voltage is within the listed 100-277V operating range before commissioning.

For long-term use, retain access to the wattage and color temperature selectors during setup. Confirm the selected output and color temperature before finalizing the fixture layout.

How This Fixture Is Commonly Used

In warehouse aisle lighting and distribution center lighting, linear fixtures are commonly arranged in rows that follow aisle direction or storage layout. Mounting height and row placement are determined by the ceiling structure, target light levels, and the selected output setting.

For manufacturing facility lighting, fixtures are generally placed to support the working layout while maintaining consistent coverage across the required area. Spacing varies with mounting height, wattage selection, and required light levels.

Retail warehouse lighting, storage facility lighting, and commercial interior high ceiling lighting layouts use the same planning factors. Selecting higher output can reduce fixture count, but the final layout must control brightness and uniformity.

Safety, Certifications, and Warranty

This fixture is UL listed. It is rebate eligible.

The fixture is rated for operation from -4F to 122F. It carries a five-year warranty.

Frequently Asked Questions

Q: What wattage and lumen settings are available?

A: The fixture is selectable at 270W, 340W, or 400W. Output is 41,600 lumens, 50,000 lumens, or 56,100 lumens, respectively.

Q: Can the color temperature be changed?

A: Yes. The fixture has selectable 4000K and 5000K color temperature settings.

Q: Does this linear high bay support dimming?

A: Yes. It supports 0-10V dimming.

Q: What mounting methods are available?

A: Chain-cable mounting is standard. Pendant and surface mounting are available options.

Q: What should be considered when planning fixture layout?

A: Mounting height, selected wattage, target light levels, and the 90 degree beam angle affect layout planning. A specific spacing value is not established by the supplied product data.

Application Questions and Clarification

Q: Is this fixture intended for warehouse aisle lighting?

A: Yes. Warehouse aisle lighting is a primary application for this linear high bay product family.

Q: Can the same fixture configuration be used for manufacturing facility lighting and distribution center lighting?

A: Manufacturing facility lighting and distribution center lighting are primary applications for this product family. Output selection, mounting height, and layout requirements should be established for each area.

Q: What should be confirmed for commercial interior high ceiling lighting?

A: Confirm the available 100-277V supply, mounting method, selected wattage, color temperature, target light levels, and layout requirements.

Web ID: 2123

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