LED linear high bay lights have become the standard specification for warehouses, distribution centers, manufacturing floors, gymnasiums, and retail spaces with ceiling heights from 15 to 40 feet. The linear form factor delivers wide, uniform illumination across long aisles and open floor plans — qualities that round UFO fixtures and older fluorescent T5 high bays struggle to match in these applications.
This guide covers everything a facility manager, engineer, or procurement specialist needs to make the right selection: how linear high bay lights compare to the alternatives, wattage and lumen requirements by application, the 130W/210W/300W selection framework, and the T5/T8 fluorescent replacement chart.
What this guide covers:
- LED linear vs UFO high bay: which to choose
- LED linear vs T5/T8 fluorescent: retrofit guide
- Wattage and lumen guide by ceiling height
- 130W vs 210W vs 300W: which model for your space
- Key specifications to verify before buying
- Applications by industry and use case
- FAQ
LED Linear High Bay Lights vs UFO Round High Bay: Which Type Should You Choose?
The choice between linear and UFO (round) high bay lights isn't primarily about brightness — it's about light distribution and the geometry of the space being illuminated.
| Feature | LED Linear High Bay | UFO Round High Bay |
|---|---|---|
| Light distribution pattern | Wide, elongated (Type II/III) | Circular, symmetrical (Type V) |
| Best for | Long aisles, rack-and-stack warehouses, retail shelving | Open floor plans, intersections, loading docks |
| Ceiling height range | 15–40 ft | 15–40 ft |
| Mounting options | Chain, pendant, surface, conduit | Chain, hook, surface |
| Aisle coverage at 20 ft | Uniform along aisle length | Circular pool — needs closer spacing |
| Glare management | Better (elongated optic redirects light) | Good with proper beam angle selection |
| Typical installation spacing | 1 fixture per 20–30 ft of aisle | 1 fixture per 15–25 ft (spacing depends on beam) |
| Preferred industry | Warehousing, logistics, retail, manufacturing | Automotive, food processing, gymnasiums |
Rule of thumb: If your facility has defined aisles, shelving rows, or long rectangular bays, linear high bay lights will deliver better uniformity with fewer fixtures. If your space is open, circular, or irregular — loading docks, open manufacturing cells, sports floors — UFO round high bays are typically more efficient.
JC-LGL offers both product families. See the detailed comparison: LED Linear vs UFO High Bay Lights: Which Is Best for Your Warehouse?
T5 and T8 Fluorescent to LED Linear High Bay
The majority of LED linear high bay retrofits involve replacing T5 or T8 fluorescent high bay fixtures. These legacy systems remain common in facilities built between 1990 and 2015. The replacement path is straightforward, but wattage-to-wattage comparison doesn't tell the whole story — lumen output, lumen maintenance, and total system efficiency all differ significantly.
Fluorescent to LED conversion chart:
| Existing fixture | Input wattage (ballast included) | LED equivalent | LED wattage | Lumen change | Annual energy savings* |
|---|---|---|---|---|---|
| 2-lamp T5HO (4 ft) | ~110W | 130W LED Linear | 130W | +Maintained longer | Minimal (slight increase at install) |
| 4-lamp T5HO (4 ft) | ~220W | 210W LED Linear | 210W | Equivalent | $15–$25/yr |
| 6-lamp T5HO (4 ft) | ~330W | 300W LED Linear | 300W | +30–50% | $35–$50/yr |
| 8-lamp T5HO (4 ft) | ~440W | 300W LED Linear | 300W | Equal to new T5 | $170–$200/yr |
| 2×54W T5HO strip | ~120W | 130W LED Linear | 130W | Equal to new T5 | ~$10/yr |
| 4-lamp T8 strip | ~128W | 130W LED Linear | 130W | Equal to new T5 | ~$10/yr |
*At $0.12/kWh, 16 hrs/day operation. Energy savings are most pronounced when replacing aging fluorescent fixtures where lamps have depreciated significantly.
The real case for LED is lumen maintenance, not upfront energy savings:
T5HO fluorescent lamps depreciate to approximately 70% output at 20,000 hours — roughly 3.5 years at 16 hrs/day. By that point, workers in a T5 facility are operating under 30% less light than when the fixtures were new, without ever having changed a bulb.
LED linear high bay lights maintain ≥ 90% of initial output through 25,000 hours, with the L70 threshold (70% maintained output) not reached until 50,000+ hours. Effectively, an LED linear high bay delivers consistent light quality for 8+ years at the same operating hours where a T5 system would require its second lamp replacement cycle.
Advantages of upgrading to LED linear high bay lights:
- No ballast: LED fixtures connect directly to line voltage (120–277V), eliminating the ballast — the most failure-prone component in fluorescent systems
- No lamp recycling: Fluorescent lamps contain mercury; LED produces no hazardous waste
- Instant full output: No 30–60 second warm-up time from cold fluorescent starts
How to choose the power and wattage of LED linear high bay lights based on ceiling height
The required lumen output per fixture depends on three factors: ceiling height, target lux level for the application, and the number of fixtures planned. The table below provides conservative starting estimates for warehouse and industrial applications.
Recommended lumen output by ceiling height (single-fixture reference):
| Ceiling height | Lumen range | Recommended model | Target lux at floor (warehouse) |
|---|---|---|---|
| 15–18 ft (4.5–5.5m) | 12,000–16,000 lm | 130W (19,500 lm) | 200–300 lux |
| 18–24 ft (5.5–7.5m) | 16,000–22,000 lm | 130W–210W | 200–300 lux |
| 24–30 ft (7.5–9m) | 22,000–32,000 lm | 210W (31,500 lm) | 200–300 lux |
| 30–36 ft (9–11m) | 32,000–42,000 lm | 300W (45,000 lm) | 200–300 lux |
| 36–40 ft (11–12m) | 40,000–50,000 lm | 300W (45,000 lm) | 150–250 lux |
For fine inspection or assembly line applications, target 500–750 lux at the work surface — approximately double the warehouse values above. Use additional fixtures or closer spacing rather than higher-wattage units to avoid glare at lower mounting heights.
Use the JC-LGL Lighting Calculator to input your room dimensions and required lux level for a fixture quantity estimate.
For a detailed breakdown by ceiling height and room type: LED Linear High Bay Lights: What Wattage for What Ceiling Height & Area?
Choosing Between the 130W, 210W, and 300W Linear High Bay
JC-LGL's LED linear high bay line covers three wattage/output levels from the same platform — the same housing, mounting system, and selectable CCT (4000K or 5000K), with scaled power and lumen output.
| Model | Wattage | Lumen output | Efficacy | Best application |
|---|---|---|---|---|
| 130W Linear High Bay | 130W | 19,500 lm | 150 lm/W | 15–24 ft ceilings, garages, workshops, retail |
| 210W Linear High Bay | 210W | 31,500 lm | 150 lm/W | 20–30 ft ceilings, mid-size warehouses, manufacturing |
| 300W Linear High Bay | 300W | 45,000 lm | 150 lm/W | 28–40 ft ceilings, large warehouses, gymnasiums |
The JCLGL LED Linear High Bay Lights share the following common features:
- 150 lm/W efficacy at every wattage level
- Selectable CCT: 4000K (neutral white) or 5000K (daylight white)
- Selectable wattage: dial-down to reduce output and energy use in spaces that don't require full output
- 0–10V dimming with optional PIR motion sensor (sold separately)
- 90° beam angle for wide aisle coverage
- Aviation-grade aluminum housing
- UL listed, 5-year warranty
Replacing metal halide?
The 300W linear (45,000 lm) replaces a 1,000–1,500W metal halide fixture.
The 210W (31,500 lm) replaces a 750W–1,000W MH. For 400W metal halide replacement in facilities where the MH delivered approximately 28,000–30,000 delivered lumens, the 210W or 300W model is the appropriate specification depending on mounting height.
[IMAGE: Three-model lineup photo showing 130W/210W/300W JC-LGL linear high bay side by side]
Key specifications to verify before purchasing LED linear ceiling lights
Efficacy (lm/W) — the number that matters more than wattage
Efficacy tells you how efficiently the fixture converts electricity to light. A fixture with 150 lm/W produces 50% more light per watt than one rated at 100 lm/W. When comparing LED linear high bay fixtures, always ask for the fixture efficacy — not the LED chip rating, which does not account for driver and optical losses.
UL Listing vs self-certification
UL listing (or ETL, CSA equivalent) means the fixture has been independently tested and certified for electrical safety by a recognized testing laboratory. Self-certified products — where the manufacturer declares compliance without independent verification — are not accepted by most commercial electricians, many building inspectors, and all insurance underwriters for commercial installations.
DLC Qualification — required for US utility rebates
DesignLights Consortium (DLC) qualification is the gateway to utility rebate programs for commercial LED upgrades. Most major US utility energy efficiency programs require DLC-listed products to issue rebates. Verify at the DLC Qualified Products List using the specific product SKU — not the brand name — before finalizing any installation intended to qualify for rebates.
CCT options: 4000K vs 5000K
The JC-LGL linear high bay is available in both 4000K (neutral white) and 5000K (daylight white):
- 4000K suits retail display, clothing stores, and food service — renders colors naturally with a welcoming tone
- 5000K is preferred for warehouses, manufacturing, and automotive — the cooler, crisper tone improves contrast for label reading and fine detail work
For mixed-use facilities, selectable CCT capability allows field adjustment without fixture replacement.
IP Rating
JC-LGL linear high bay lights are rated IP65 — fully dust-tight and protected against low-pressure water jets from any direction. This rating is appropriate for most industrial and commercial indoor applications.
Linear High Bay Applications by Industry
Warehouses and distribution centers (15–40 ft ceilings)
The primary application for LED linear high bay lights. Linear fixtures align with rack rows, providing uniform illumination along each aisle with minimal inter-aisle spill. At 20-foot mounting height, the 210W model (31,500 lm) covers an aisle approximately 8–10 feet wide at 200+ lux — adequate for pick-and-pack operations.
For 24/7 operations, pair with 0–10V dimming and PIR occupancy sensors: full output in active aisles, 20–30% in unoccupied zones. Energy savings of 30–50% beyond the base LED efficiency gain are consistently documented in sensor-controlled warehouse installations.
Manufacturing and assembly facilities
Higher lux targets (300–500 lux for general manufacturing, 500–750 lux for fine assembly) require closer fixture spacing than standard warehouse configurations. The 130W model at 15–18 ft mounting height achieves 400–500 lux at appropriate spacing for general manufacturing floor applications.
Higher CRI (80+) across the JC-LGL line supports color-coded safety markings, wire color identification, and quality inspection tasks — a measurable improvement over standard metal halide installations at CRI 65–75.
Gymnasiums and sports facilities
The 300W model (45,000 lm) is the standard specification for full-sized gymnasium applications at 28–35 ft ceiling heights. Linear fixtures running parallel to the court's long axis provide even illumination across the full playing surface with minimal glare in players' sight lines.
Dimmability enables distinct output settings for competitive events (full 100%), practice sessions (60–70%), and non-athletic use (30%). See: Gymnasium Lighting Guide 2026
Retail stores and supermarkets
At 15–20 ft ceiling heights, the 130W model provides sufficient output for general retail illumination. Adjustable CCT allows matching the fixture's color temperature to brand identity — 4000K for a neutral, welcoming tone; 5000K for a clean, modern appearance that complements product displays.
For clothing stores, the 4000K option is almost always preferred — it renders fabric colors accurately without the blue cast of 5000K, which can shift warm tones toward gray under fluorescent-style cool lighting.
Auto repair shops and workshops
Low-bay installations (10–15 ft ceiling height) with the 130W model are common in auto repair, machine shops, and commercial garages. At these heights, the wide 90° beam angle provides good floor coverage. The 5000K color temperature is preferred for distinguishing oil stains, identifying part markings, and matching paint colors under simulated daylight conditions.
LED Linear High Bay Lights Installation
JC-LGL linear high bay lights ship with a straight-link chain and V-hook mounting system for suspension installation. Pendant and conduit mounting options are available as accessories.
Electrical requirements: 120–277V AC input, compatible with standard commercial wiring. No ballast required. A licensed electrician should complete all hardwiring; fixture mounting and chain adjustment can typically be completed without an electrician once the electrical rough-in is in place.
Spacing guidance: For 20 ft ceiling height in a warehouse application, space 210W fixtures at 22–25 ft center-to-center along aisles, with aisle-to-aisle spacing of 16–20 ft. Use the lighting calculator for your specific dimensions.
Full installation instructions: Installation Guide for Linear High Bay Lights
Frequently Asked Questions
What is the difference between LED linear high bay and UFO round high bay lights? The main difference is light distribution. Linear high bay lights emit an elongated beam pattern (Type II or III distribution) that follows aisle and bay geometry — ideal for warehouses, shelving rows, and retail aisles. UFO round high bay lights emit a circular pattern (Type V) better suited for open floor plans, loading docks, and spaces without defined directional geometry.
What wattage LED linear high bay do I need for a 25-foot warehouse ceiling?
For a standard warehouse application at 25 ft (targeting 200–300 lux at floor level), the 210W model (31,500 lm) is typically the right specification. At 30+ ft ceiling heights, the 300W model (45,000 lm) is recommended. Use the JC-LGL Lighting Calculator for a room-specific quantity estimate.
Can LED linear high bay lights replace T5 or T8 fluorescent high bays?
Yes — direct replacement is straightforward. A 6-lamp T5HO system drawing ~330W can be replaced by the 300W LED linear (300W, 45,000 lm) with equal or better delivered lumen output. A 4-lamp T5HO (~220W) maps to the 210W LED model. The key advantage beyond energy savings is lumen maintenance: LED maintains ≥ 90% output through 25,000 hours, while T5HO lamps depreciate to 70% in roughly 20,000 hours.
What is the beam angle of JC-LGL linear high bay lights?
JC-LGL linear high bay lights feature a 90° beam angle, providing wide coverage suitable for most aisle and bay applications. For low-ceiling applications (15–18 ft) where tighter control is needed to reduce inter-aisle light spill, inquire about available secondary optics.
Do LED linear high bay lights work with motion sensors and dimming controls?
Yes. JC-LGL linear high bay lights support 0–10V dimming and are compatible with the optional PIR motion sensor accessory for occupancy-based switching between full output and a low-power standby mode. Motion detection radius is up to 25 feet.
Are JC-LGL linear high bay lights suitable for cold storage environments?
The fixtures operate down to -20°C and are rated IP65, making them suitable for most cold storage applications. For sub-zero freezer environments (below -20°C), confirm operating temperature specifications before installation.
Led industrial high bay lights are an excellent choice for lighting.
LED linear high bay lights are the right specification for spaces with defined aisle geometry, high ceiling heights, and extended daily operating hours. The key decisions are:
- 130W vs 210W vs 300W: based on ceiling height and required lux level
- 4000K vs 5000K CCT: based on application (retail/hospitality vs industrial/warehouse)
- Motion sensor integration: standard recommendation for any facility with variable occupancy patterns
- UL listing and DLC status: required for commercial installation acceptance and utility rebate eligibility
JC-LGL's linear high bay line — 130W (19,500 lm), 210W (31,500 lm), and 300W (45,000 lm) — delivers 150 lm/W at all three wattage levels, with selectable CCT, 0–10V dimming, aviation-grade aluminum housing, UL listing, and a 5-year warranty.
View JC-LGL LED Linear High Bay Shop Lights →
Related articles in this series:
- LED Linear vs UFO High Bay Lights: Which Is Best for Your Warehouse?
- LED Linear High Bay: What Wattage for What Ceiling Height?
- How Many Lumens for Linear High Bay Lights in a 30-Foot Warehouse?
- Installation Guide for Linear High Bay Lights
- Gymnasium Lighting Guide 2026
Written by Jaydon Leo, Lighting Engineer at JC-LGL. Technical questions about linear high bay specifications or retrofit planning: support@jclgl-led.com or +1 (715) 440-5721.
References: U.S. Department of Energy — SSL for Commercial Buildings · IES RP-2: Illumination for Industrial Facilities · DLC Qualified Products List
