LED Linear High Bay Lights
- Designed for aisles, rows, and fluorescent high bay replacements
- Voltage, dimming, and motion sensor options available by model
- Free lighting plans help evaluate spacing and coverage
Get Your Custom Lighting Plan With Product Recommendations
- Layout planned for aisle orientation, fixture spacing, and uniform coverage across rows and racking
- Fixture selection matched to ceiling height, lumen output, and fluorescent replacement requirements
- LED conversion can reduce energy use and eliminate ballast-related maintenance costs
Our Linear LED High Bays include rectangular indoor fixtures for fluorescent high bay replacement projects and row-based lighting layouts. Available models vary by voltage, wattage and CCT selectable configurations, dimming, motion sensors, emergency backup, and chain, cable, pendant, surface, or wire mounting options.
These fixtures are commonly used in warehouse aisles, pallet racking areas, distribution centers, production lines, assembly areas, retail warehouse spaces, gyms, service bays, and other rectangular commercial and industrial spaces.
What Are LED Linear High Bay Lights?
LED linear high bay lights are rectangular indoor high bay fixtures commonly used to replace F54/T5/HO, T8, and other fluorescent high bay systems in commercial and industrial spaces. Their longer fixture shape can distribute light across a wider area, making them a strong fit for aisles, pallet racking, production lines, retail warehouse spaces, gyms, distribution centers, and other layouts where smooth, even coverage is important.
Linear high bays are often selected when a facility needs uniform lighting across rows, work areas, or rectangular spaces. Compared with compact round UFO high bays, linear fixtures can provide a familiar replacement path for older fluorescent fixtures and may help reduce striping, shadows, and uneven coverage in row-based layouts.
With over 15 years of commercial and industrial lighting experience, LED Lighting Supply's Product Specialists help customers match linear high bays to ceiling height, lumen output, fixture spacing, voltage, mounting method, controls, and application requirements.
Selection and Installation Note: Product specifications, ratings, controls, certifications, and warranty coverage vary by model. Confirm the selected product specification before ordering.
This customer replaced fluorescent high bays with LED linear high bays to improve light levels, uniformity, and visibility across the space.
When Linear High Bays Are the Right Fit
Linear high bays are usually a strong starting point when the existing layout uses fluorescent strip-style fixtures or when the space benefits from a longer rectangular light source. For the right fixture, confirm that the layout favors wide, even distribution, then match lumen output and spacing to ceiling height and target foot-candle levels, and verify voltage, mounting, and controls before ordering.
Common applications include warehouse aisles, distribution centers, production lines, assembly areas, retail warehouse spaces, gyms, service bays, and other rectangular indoor spaces where even coverage across rows or work areas is important.
Linear high bays are often a good choice for fluorescent-style replacement projects, warehouse aisles, pallet racking, production lines, and rectangular layouts. UFO high bays may be a better fit for open spaces or applications requiring a narrower distribution. The appropriate fixture type depends on the selected fixture's photometric distribution, mounting height, spacing, and required illuminance.
| Use Linear High Bays When | Consider Another Fixture When |
|---|---|
| You are replacing fluorescent high bays, including F54/T5/HO, T8, or multi-tube fixtures. | You are replacing metal halide or HPS high bays in open areas where UFO high bays may provide a more direct replacement path. |
| The layout is row-based, such as warehouse aisles, pallet racking, production lines, assembly areas, or retail warehouse spaces. | The space is a broad, open area, where a fixture with a different distribution may better suit the mounting height and layout. |
| Wide, even distribution is needed across rectangular work areas, rows, or aisles. | The mounting height or layout requires a tighter distribution, as determined through fixture-specific photometric analysis. |
| The environment is a standard indoor commercial or industrial space and the selected model has the required ratings. | The area is wet, washdown, corrosive, high-temperature, or classified, and requires a fixture specifically rated for the documented environmental or hazardous-location conditions. |
Use the linear high bay selector below to narrow fixtures by wattage, lumens, voltage, color temperature, controls, and mounting options.
Recommended Foot-Candles for Linear High Bay Applications
Use the tool below to find general starting foot-candle ranges by application. Final fixture selection and layout should be verified with a photometric plan, especially for warehouses with racking, production spaces, gyms, aircraft hangars, distribution centers, or safety-critical areas.
Step 1: Find your foot candle levels
Step 2: Estimate your fixture count and space
Linear High Bay Lighting Layout Estimator
Use this estimator to calculate approximate fixture count, spacing, and average foot-candles for warehouses, aisles, production areas, storage spaces, and commercial interiors using linear LED high bay fixtures. 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
Estimated Results
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.
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.
Choosing Linear High Bays by Ceiling Height, Layout, and Replacement Type
Linear high bay selection starts with ceiling height, target foot-candle levels, existing fixture layout, voltage, and the type of work being performed in the space. Tube count can provide a helpful starting point for fluorescent replacements, but final LED selection should be based on lumen output, fixture spacing, mounting height, and application requirements.
- Fluorescent replacement: Linear high bays are commonly used to replace 4-tube, 6-tube, and 8-tube fluorescent high bay systems.
- Lower-to-mid high bay ceilings: Linear fixtures often work well where a wide distribution pattern helps create even coverage.
- Aisles and rows: Linear high bays are often preferred for pallet racking, warehouse aisles, production lines, and rectangular work areas.
- Open areas: Linear high bays can work in open spaces, but UFO high bays or other distributions may be a better choice when the photometric plan calls for more concentrated downward light.
- Voltage requirements: Confirm whether the project requires 100-277V, 277-480V, or another driver configuration before ordering.
- Mounting method: Verify chain, cable, pendant, or surface mounting compatibility and confirm that the building structure and supports are suitable for the selected fixture and mounting method.
- Controls: If motion sensors or dimming are required, confirm sensor type, detection pattern, wiring requirements, and compatibility with the selected model.
Tip: Do not size LED replacements by fluorescent tube count alone. A 6-tube fluorescent fixture in a 15-foot space may require a different LED solution than the same fixture layout in a 25-foot space.
Replacing Fluorescent High Bays with LED Linear High Bays
Replacing fluorescent high bay fixtures with LED linear high bays can reduce maintenance associated with lamps and ballasts and may support dimming or occupancy controls. Linear LED high bays are commonly used as replacements for F54/T5/HO, T8, and multi-tube fluorescent high bay systems in warehouses, production spaces, gyms, retail warehouse areas, and other indoor commercial or industrial facilities.
The lumen ranges below are general starting points. Actual fixture selection should be verified against mounting height, fixture spacing, target foot-candle levels, voltage, controls, and the work being performed in the space.
| Existing Fluorescent Fixture | General LED Linear High Bay Starting Point |
|---|---|
| 4-tube F54/T5/HO or similar | Approximately 12,000 to 18,000 LED lumens, depending on mounting height, spacing, and application. |
| 6-tube F54/T5/HO or similar | Approximately 18,000 to 24,000 LED lumens, depending on mounting height, spacing, and application. |
| 8-tube F54/T5/HO or similar | Approximately 24,000 to 40,000 LED lumens, depending on mounting height, spacing, and application. |
Many linear high bay installations use chain, wire, pendant, or cable suspension methods. Confirm the selected fixture's mounting requirements, weight, wiring, voltage, and control compatibility before replacing existing fluorescent fixtures one-for-one.
- Reduced energy use: LED replacements can reduce energy consumption compared with fluorescent systems when properly selected and installed.
- Lower maintenance: LED fixtures eliminate routine fluorescent lamp and ballast replacement.
- Instant full output: LED fixtures typically reach full output immediately, including in many colder indoor environments where fluorescent performance may be affected.
- Control compatibility: Many LED linear high bays support dimming and occupancy controls for additional energy-saving opportunities.
- Light quality: A properly specified LED upgrade can provide consistent light output and color characteristics without fluorescent ballast hum.
- No fluorescent lamps: LED fixtures do not use fluorescent tubes or their mercury content. Follow applicable requirements for disposal or recycling of removed fluorescent lamps, ballasts, and electronic equipment.
The U.S. Department of Energy reports that LED technology can significantly reduce energy consumption compared with traditional lighting. Use our lighting calculator or request a photometric plan to estimate savings, fixture count, and expected light levels for your specific facility.
Interior space converted to LED using linear high bay fixtures.
Voltage, Controls, Mounting, and Adjustable Features
Linear high bay lights are available with different voltages, controls, mounting, and field-adjustable options. Confirm the selected product specification before ordering because available features vary by model.
- Voltage options: Many models support 100-277V operation, while industrial facilities may require 277-480V high bay fixtures.
- Wattage selectable models: Field-adjustable power settings can help fine-tune fixture light output when the selected model and installation allow it.
- CCT selectable models: Selectable 3000K, 4000K, and 5000K options can help standardize the apparent color of light across a space. CCT does not determine brightness or color-rendering performance.
- Dimming: 0-10V or 1-10V dimming may be available for task-specific lighting levels and energy control.
- Motion sensors: PIR or microwave high bay motion sensor options may be available depending on model, mounting height, and detection requirements.
- Emergency backup: Emergency battery backup may be available on compatible models. Emergency-lighting design, installation, and testing must meet applicable code and project requirements.
- Mounting options: Chain, cable, pendant, surface, or wire mounting options may be available depending on fixture design.
Large indoor truck maintenance bay converted to LED linear high bays.
Certifications, Rebates, and Warranty Support
Selected LED linear high bay lights from LED Lighting Supply carry a safety listing or certification from an organization such as UL, ETL, or CSA, depending on the product and application. Many models may be DLC or DLC Premium listed for utility rebate eligibility where available. DLC qualification is a performance program and does not replace an electrical safety certification. Rebate requirements vary by utility, region, and product listing, so confirm eligibility on the selected product specification before ordering.
Many LED linear high bay models include a 5-year warranty, although warranty terms and coverage vary by product. Before purchase, review the selected product specification to confirm certifications, DLC status, voltage, dimming, controls, mounting method, emergency backup options, environmental ratings, and suitability for the intended space.
Linear High Bay Case Studies and Project Results
Real project examples help show how LED linear high bays have been used in warehouses, service bays, gyms, retail warehouse spaces, and large indoor facilities. Review these installations to see fixture choices, mounting heights, replacement scenarios, and application-specific outcomes.
Tatsumi Intermodal U.S.A. Inc.’s Linear High Bay Warehouse Lighting Case Study
The Backstory
Tatsumi Intermodal U.S.A. Inc. faced challenges with consistent and effective lighting throughout its warehouse areas. They were operating with a legacy fluorescent lighting system that consumed excess energy while producing minimal brightness. Tatsumi approached LED Lighting Supply to provide a custom-tailored lighting solution that aligns with OSHA (Occupational Safety and Health Administration) requirements.
The Customer's Challenge
The facility consists of three separate warehouse spaces with 300 fluorescent fixtures. Each section required a lighting solution that would increase overall brightness levels to meet OSHA illumination standards while preserving the existing wiring system. The fluorescent lights were only producing about 20 foot candles (fc) across each warehouse floor section. Proper lighting levels for a warehouse environment typically fall between 40 and 60 fc, depending on the space dimensions.
Lighting plan metrics:
- Product(s) Used: MLLG-X-LED-HBLIN6-(240/270/310)-CC-[V]
Case Study: Installation of new LED Lighting for Habitat for Humnaity
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After: 165 Watt Linear High Bay | 30500 Lumens |
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Lighting Plan We Created for the Customer
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Lighting Plan |
Heat Map |
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Warehouse Lighting Installation Plan Metrics
- Mounting height: 32 ft
- Fixture Used: 130 / 160 / 220 Watt Adjustable Linear LED High Bay | 20000 to 34000 Lumens | 3500K / 4000K / 5000K Adjustable | 100-277V | Optional Motion Sensor | 1 Foot 7 Inches
- FC achieved: 31.82 FC average
- Uniformity (Avg/Min): 2.01
Case Study: Doggy Day Care with LED Lighting Supply 80 / 90 / 105 Watt Adjustable Linear LED High Bay in Scottsdale, AZ
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After: 80 / 90 / 105 Watt Adjustable Linear LED High Bay | 12000 to 15750 Lumens |
After: 80 / 90 / 105 Watt Adjustable Linear LED High Bay | 12000 to 15750 Lumens |
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Lighting Plan We Created for the Customer
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Lighting Plan |
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Doggy Day Care Installation Plan Metrics
- Mounting height: 14 ft
- Fixture Used: LLS-X-HBLIN8-2-105/90/80-CC: 80 / 90 / 105 Watt Adjustable Linear LED High Bay | 12000 to 15750 Lumens | 4000K / 5000K Adjustable | 100-277V | 2 Foot
- FC achieved: 55.57 fc average
- Uniformity (Avg/Min): 1.61
Request a free high bay lighting plan, and our Product Specialists can help match the right linear high bay output, spacing, mounting method, and control configuration to your application.
Pre-Order Checks for Linear High Bay Projects
- Confirm the electrical branch circuit: Verify supply voltage, fixture driver voltage, dimming wiring, and any control wiring before ordering. A fixture rated for 100-277V is not interchangeable with a 277-480V fixture.
- Coordinate controls before installation: Determine whether occupancy sensing, daylight response, scheduling, or a building-management system is required. Confirm compatibility among the fixture, sensor, dimming system, and control wiring.
- Review mounting and access: Confirm the suspension method, fixture weight, junction-box arrangement, cord length, and service access. The installing contractor or qualified project authority should verify support and structural suitability.
- Specify the actual environment: IP ratings address solid-particle and water-ingress protection, not chemical resistance, corrosion resistance, sanitation, or hazardous-location suitability. For washdown, corrosive, high-temperature, or classified areas, verify the exact fixture rating, materials, seals, ambient rating, and required certification.
- Plan for emergency lighting separately: A battery-backup option does not by itself establish compliance with an emergency-lighting design. Confirm required illumination, runtime, circuiting, testing, and code requirements for the project.
- Use fixture-specific photometrics for final layout: Lumens alone do not predict light at the work surface. Final spacing and quantity should account for mounting height, racking, obstructions, reflectances, fixture optics, and target foot-candle levels.
This Content on Linear high bay lighting guidance, Linear High Bay installation and application considerations, and fixture selection content Was Professionally Reviewed By:
Jamie Popp, Professional Electrical Engineer (PE)
Multi-State Licensed Professional Engineer
Master of Science in Engineering
Master of Science in Project Management
Jamie has spent over 15 years working directly with industrial energy systems and facility operations. In his engineering design work, he focuses on comprehensive lighting designs, complex power distribution engineering, technical hazardous area classifications, and design-level construction support.
He applies these specialized design skills across demanding environments, including petrochemical, nuclear, mining, pulp and paper, and manufacturing facilities.
This content was reviewed for technical accuracy, engineering relevance, real-world application, and clarity for the stated lighting topic.
LED Linear High Bay Lights FAQs
When Are LED Linear High Bay Lights The Right Fit?
LED linear high bay lights are usually a strong fit for fluorescent-style replacement projects, aisles, pallet racking, production lines, and rectangular indoor layouts where wide, even distribution is important. They are commonly used in warehouses, distribution centers, assembly areas, retail warehouse spaces, gyms, and service bays.
How Do Linear High Bays Compare With UFO High Bays?
Linear high bays are usually the better choice for row-based layouts and fluorescent high bay replacements, while UFO high bays may be a better fit for open spaces, metal halide replacement projects, and higher mounting heights requiring stronger downward output or tighter beam control. Linear fixtures can also provide a more familiar replacement path for older fluorescent fixtures.
How Should I Size An LED Linear High Bay Replacement?
Size an LED linear high bay replacement using lumen output, mounting height, fixture spacing, target foot-candle levels, voltage, controls, and the work performed in the space. Fluorescent tube count can provide a starting point, but it should not be the only factor used for final selection.
What LED Lumen Range Is A Starting Point For Replacing Fluorescent High Bays?
General starting points are approximately 12,000 to 18,000 LED lumens for 4-tube fixtures, 18,000 to 24,000 lumens for 6-tube fixtures, and 24,000 to 40,000 lumens for 8-tube fixtures. Actual selection should be verified against mounting height, spacing, target foot-candle levels, voltage, controls, and application requirements.
How Can I Estimate Fixture Count And Layout For A Linear High Bay Project?
Estimate fixture count and layout from ceiling height, target foot-candle levels, fixture spacing, existing layout, and the work being performed in the space. Final fixture selection and layout should be verified with a photometric plan, especially for warehouses with racking, production spaces, gyms, aircraft hangars, distribution centers, or safety-critical areas.
What Voltage And Mounting Details Should Be Confirmed Before Ordering?
Confirm whether the project requires 100-277V, 277-480V, or another driver configuration, along with the selected fixture's mounting requirements, weight, wiring, and control compatibility. Chain, cable, pendant, surface, or wire mounting options may be available depending on fixture design, and existing supports should be verified for the selected fixture.
Are Dimming, Motion Sensors, And Emergency Backup Available?
Dimming, motion sensors, and emergency battery backup may be available depending on the selected linear high bay model and project requirements. Confirm sensor type, detection pattern, wiring requirements, dimming compatibility, and emergency backup options on the selected product specification before ordering.
Can Standard Linear High Bays Be Used In Harsh Environments?
Standard linear high bays are intended for indoor commercial or industrial spaces when the selected model has the required ratings. Wet, washdown, corrosive, high-temperature, dusty, or classified areas may require specialty harsh-environment fixtures instead of standard linear high bays.
