High Bay Selection Guide: Selecting the Best Fixture by Application

High Bay Selection Guide: Selecting the Best Fixture by Application

Selecting the right high bay lighting isn't simply about choosing a wattage or lumen package. Every facility has unique requirements based on mounting height, environmental conditions, impact resistance, washdown requirements, and lighting objectives.

Whether you're illuminating a warehouse, food processing facility, sports complex, manufacturing plant, or distribution centre, understanding the strengths of each fixture type can help ensure long-term performance and reliability.

This guide compares four DLC Premium-rated high bay lighting solutions and explains where each fixture performs best, helping contractors, specifiers, and facility managers make informed decisions.

Why Fixture Selection Matters

High bay lighting is commonly used in spaces with ceiling heights above 20 feet where fixtures must deliver consistent illumination across large areas. Different environments demand different levels of protection and performance.

For example:

• Food processing environments often require NSF-listed fixtures designed for washdown conditions, moisture exposure, and frequent cleaning cycles.

• Manufacturing facilities may require higher impact resistance, wide operating temperature ranges, and durable construction for continuous operation.

• Large-volume recreational or commercial spaces typically require solutions suited to high mounting heights and wide-area light distribution with consistent coverage.

• Warehouse and distribution environments are generally optimized for uniform illumination, energy efficiency, and layouts supporting aisle-based racking systems.

Matching the fixture's certifications and construction to the environment is just as important as achieving the desired light levels. High bay fixtures are typically selected based on mounting height, beam distribution, environmental conditions, and required light levels. Linear fixtures often excel in aisle-based layouts, while round high bays and sports luminaires are commonly used in large open spaces. DLC-listed fixtures may also qualify for utility rebate programs depending on the region.

High Bay Fixture Comparison Chart

VT4/8 Vapour Proof Series

Best For:

• Food processing facilities

• Beverage plants

• Agricultural facilities

• Car washes

• Damp or washdown environments

• Cold storage applications

The VT4/8 Vapour Proof Series is the most rugged environmental fixture in this comparison. With IP66 protection, NEMA 4X certification, NSF certification, and an IK10 impact rating, it is designed for environments where moisture, dust, chemicals, and physical abuse are constant concerns.

Unlike traditional high bays that may require additional protection in harsh conditions, the VT series is purpose-built to operate in demanding environments while maintaining reliable illumination.

Choose the VT4/8 when environmental protection is the top priority.

Specifying Tips:

• Ideal for facilities requiring washdown procedures.

• Consider food-grade environments where NSF certification is required.

• Suitable for both indoor and semi-exposed applications.

• Excellent option for facilities subject to frequent cleaning or chemical exposure.

SPT Series

Best For:

• Aircraft hangars

• Large manufacturing facilities

• Distribution centres with high mounting heights

• Transportation and logistics facilities

• Port and marine-adjacent operations

• Recreation centres and gymnasiums

• Large open commercial or industrial spaces

The SPT Series differs from traditional high bay fixtures in that it was designed to deliver illumination across large open areas from elevated mounting heights. While commonly associated with sports facilities, its optical performance and environmental ratings make it suitable for a variety of industrial and commercial applications.

For projects with exceptionally high ceilings or expansive open floor plans, the SPT Series may be considered when greater fixture spacing or more concentrated light distribution is required. This can make it a practical option for aircraft hangars, large manufacturing facilities, logistics hubs, and similar environments where standard high bay layouts may not provide the desired coverage. Depending on the application, utilizing different optics can help achieve the desired lighting results. For example, 60° optics can be used to widen beam coverage when the fixture is specified for certain high bay applications.

Environmental conditions may also influence fixture selection. The SPT Series features IP66 protection and 1000-hour salt spray endurance, making it well-suited for facilities located near coastlines, ports, wastewater treatment facilities, or industrial environments where exposure to moisture and corrosive airborne contaminants is a consideration.

Choose the SPT Series when mounting height, large-area coverage, or corrosion resistance are key project considerations.

Specifying Tips:

• Consider facilities with high ceilings and large open floor plans.

• Suitable for coastal or corrosive environments where additional durability is beneficial.

• Ideal for aircraft hangars, logistics facilities, and large industrial spaces.

• Evaluate mounting height and spacing requirements when comparing against traditional high bay fixtures.

LHB04 Linear High Bay

Best For:

• Warehouses

• Distribution centres

• Manufacturing facilities

• Retail warehouses

• Assembly lines

• Aisle-based layouts

The LHB04 Linear High Bay is designed specifically for indoor commercial and industrial environments. Its linear form factor delivers a rectangular light distribution pattern ideal for aisles, racking systems, production lines, and long workspaces.

Compared to round high bays, linear fixtures often provide more uniform illumination across shelving and warehouse aisles, helping reduce shadows and improve visibility. Different optics can also be utilized to achieve specific lighting objectives, with 110° optics recommended for broad, uniform illumination in wide open spaces.

With an operating temperature range up to 50°C, the LHB04 is well suited for facilities with elevated ambient temperatures.

Choose the LHB04 when lighting uniformity and warehouse efficiency are the primary objectives.

Specifying Tips:

• Best suited for dry indoor environments.

• Ideal for warehouse racking systems and logistics facilities.

• Excellent option for manufacturing and assembly areas.

• Consider for projects requiring long, continuous rows of lighting.

HB8 High Bay

Best For:

• Warehouses

• Manufacturing plants

• Distribution centres

• Food processing facilities

• Gymnasiums

• Industrial facilities

• Utility and maintenance areas

• Agricultural facilities

The HB8 High Bay is the most versatile fixture in this comparison. Combining NSF certification, NEMA 4X protection, IP65 performance, and a wide operating temperature range, it bridges the gap between traditional industrial high bays and fixtures designed for more demanding environments.

Its rugged construction makes it suitable for facilities where moisture, dust, and occasional washdown procedures are present without requiring the fully sealed design of a vapour proof fixture. Different optics can also be utilized to achieve specific lighting objectives, with 60° optics recommended for narrower warehouse aisles.

This flexibility allows the HB8 to perform across a wide range of commercial and industrial applications.

Choose the HB8 when you need one fixture that can handle a broad range of environments.

Specifying Tips:

• Ideal for mixed-use industrial facilities.

• Suitable for food and beverage processing environments.

• Excellent choice for warehouse and manufacturing projects requiring additional environmental protection.

• Consider when long-term durability is a priority.

Which High Bay Series Should You Choose?

Final Thoughts

There is no single high bay fixture that is ideal for every project. The best choice depends on the environment, mounting conditions, and performance requirements of the space.

For harsh and washdown environments, the VT4/8 Vapour Proof Series offers the highest level of protection. For sports facilities, coastal environments and tall open spaces, the SPT Sports Lighting Series provides superior optical performance and corrosion protection. For warehouses and aisle layouts, the LHB04 Linear High Bay delivers excellent uniformity. For versatile industrial applications requiring durability and environmental protection, the HB8 High Bay is the most flexible solution.

By selecting a fixture that aligns with the demands of the application, contractors and specifiers can maximize performance, efficiency, and long-term reliability.

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