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320 / 400 / 500 Watt Adjustable Linear LED High Bay Light | 48960 to 76900 Lumens | 3500K / 4000K / 5000K Adjustable | 100-277V | 3 Foot 4 Inches
This linear LED high bay is a strong choice for large indoor spaces needing high, flexible light output, with adjustable wattage (320/400/500W) and color temperature (3500K/4000K/5000K) to match varied facility needs. Its 76,900-lumen maximum, 120° beam angle, and 80+ CRI support uniform, accurate illumination in warehouses, manufacturing plants, and distribution centers, especially when replacing 1500W metal halide fixtures. The aluminum housing, -22°F to 122°F operating range, UL listing, and 100,000-hour lifespan ensure durability and reliability.
Dwayne Kula | President, CTO and Founder
651 in stock
Product Description
Key Features
- Watts: 320 | 400 | 500
- Lumens: 48960 | 61200 | 76900
- Lumens Per Watt: 150
- Replaces: 1500 Watt Metal Halide
- Voltage: 100V-277V
- Color Temperature: 3500K or 4000K or 5000K
- CRI: 80+
- Dimming: 1-10V
- Beam Angles (Std): 120°
- Lifespan: 100,000 (L70) hours
- Mounting: Chain-Cable
- Mounting (Opt): Surface
- Fixture Color: White
- Frequency (Hz): 50/60
- Power Factor: .90
- THD: 20% Max
Durable Construction
- Housing: Aluminum Alloy
- Operating Temperature: -22°F to 122°F
- Certifications: UL | Rebate Eligible
- Warranty: 5 years
Measurements
- Dimensions (in): 39.5 L X 12 W X 2 H
- Weight (lbs): 14.6
- Cord Length: No Cord
Features/Accessories
- Color Adjustable
- Wattage Adjustable
Product Overview
This is a 320 / 400 / 500 Watt Adjustable Linear LED High Bay Light designed for large-scale, high-ceiling commercial and industrial interiors. The fixture delivers selectable output and color temperature, supporting a range of lighting requirements in warehouse aisles, manufacturing lines, and distribution centers. Typical mounting heights are 25 to 45 feet, replacing 1500W metal halide systems in both new and retrofit projects.
The linear form factor and high lumen package make this fixture suitable for environments requiring broad, uniform coverage along aisles or open floor areas. The housing is constructed from aluminum alloy and supports chain-cable or surface mounting for flexibility during installation.
Core Performance and Output
This fixture provides three selectable wattage settings: 320W, 400W, and 500W, delivering 48,960 to 76,900 lumens at up to 150 lumens per watt. The 120° beam angle supports wide, even distribution, minimizing shadowing in racked or open layouts. Color temperature is field-adjustable between 3500K, 4000K, and 5000K to match task or ambient requirements.
1-10V dimming is standard for integration with lighting controls or occupancy sensors. Output at 500W is best suited for mounting heights above 30 feet; at lower heights, glare and excessive brightness may occur. Uniformity may decrease if spacing exceeds recommended patterns for the selected wattage and mounting height.
Adjustability and Control Options
Both wattage and color temperature are field-adjustable using onboard switches, allowing adaptation to changing operational needs or layout changes. The fixture supports 1-10V dimming for integration with daylight harvesting, occupancy sensors, or centralized lighting control systems.
Adjustability enables tuning of light levels and color to suit specific tasks or to standardize lighting across different areas of a facility. No onboard motion sensor is included; external controls can be added as needed.
Longevity and Reliability
The fixture is rated for 100,000 hours (L70), supporting long-term operation in demanding environments. The aluminum alloy housing provides thermal management and impact resistance, reducing maintenance intervals compared to legacy HID systems.
Operating temperature range is -22°F to 122°F, suitable for most conditioned and unconditioned industrial interiors. The fixture is UL listed and covered by a 5-year warranty.
Build Quality and Physical Characteristics
The housing is constructed from aluminum alloy with a white finish. The fixture measures 39.5 inches long, 12 inches wide, and 2 inches high, with a weight of 14.6 lbs. Chain-cable mounting is standard; surface mounting is optional for installations where suspension is not feasible.
No power cord is included; field wiring is required. The fixture is designed for high bay environments and is not intended for wet or corrosive locations.
Where This Product Fits Best
This linear high bay is intended for large, high-ceiling interiors where broad, uniform illumination is required. It is commonly installed in:
- warehouse aisle lighting
- manufacturing facility lighting
- distribution center lighting
- retail warehouse lighting
- storage facility lighting
- commercial interior high ceiling lighting
Environments with mounting heights from 25 to 45 feet, requiring high output and uniformity, are best suited. The fixture is not rated for wet locations or environments with corrosive airborne contaminants.
Installation and Long-Term Use
Chain-cable mounting is standard and supports typical high bay suspension methods. Surface mounting is available for installations with limited ceiling height or where direct attachment is required. The fixture?s weight and size allow for single-person handling, but overhead installation may require lift equipment at higher mounting heights.
Field wiring is required; no cord is supplied. Routine cleaning of the lens and housing is recommended to maintain output in dusty or debris-prone environments. The fixture is designed for minimal maintenance over its rated life.
How This Fixture Is Commonly Used
Fixtures are typically installed in rows along warehouse aisles or above open manufacturing floors, spaced to achieve target light levels and uniformity. Mounting heights range from 25 to 45 feet, with spacing determined by output setting and ceiling height.
Higher output settings reduce fixture count but may increase glare if installed below 30 feet. Layouts are often coordinated with racking or machinery placement to minimize shadowing and maximize coverage.
Safety, Certifications, and Warranty
This fixture is UL listed. Power factor is 0.90 with THD below 20%. The product is eligible for utility rebates where applicable. A 5-year warranty covers manufacturing defects and performance.
No additional safety features beyond standard electrical and thermal protections are included. The fixture is not rated for hazardous or wet locations.
Frequently Asked Questions
Q: What is the recommended mounting height for the 500W setting?
A: The 500W setting is best suited for mounting heights above 30 feet to avoid excessive brightness and glare.
Q: Can this fixture be installed with surface mounting instead of chain-cable suspension?
A: Yes, surface mounting is supported as an optional installation method.
Q: Is the fixture compatible with occupancy sensors or lighting controls?
A: The fixture supports 1-10V dimming and can be integrated with external occupancy sensors or control systems.
Q: What is the expected lifespan of the fixture?
A: The fixture is rated for 100,000 hours (L70).
Q: How should fixture spacing be determined for warehouse aisle layouts?
A: Spacing depends on mounting height, output setting, and target light levels; closer spacing improves uniformity, especially at lower wattage settings.
Application Questions and Clarification
Q: Is this fixture suitable for use in wet or corrosive environments?
A: No, this fixture is not rated for wet or corrosive locations.
Q: Can this fixture be used in commercial interiors with lower ceiling heights?
A: The fixture is designed for high bay applications; at lower ceiling heights, output may be excessive and glare may increase.
Q: Is this fixture appropriate for open floor manufacturing areas as well as aisles?
A: Yes, the wide beam angle and high output support both aisle and open floor layouts in manufacturing and distribution environments.
