Choosing lighting for a normal warehouse is relatively straightforward. Choosing lighting for a steel mill, foundry, heat-treatment line, chemical plant, glass facility, or other high-temperature industrial environment is not.
Lights in these environments must endure washdowns, continuous heat, dust, fumes, vibration, thermal cycling and extended production hours. A lighting fixture that works great in a standard workshop will fail prematurely when placed near a furnace, kiln, reactor or other process generating extreme heat.
So choosing the right fixture becomes less about having the brightest light or lowest purchase price and more about selecting a luminaire that is designed for your operating conditions.
A reliable high-temperature lighting specification should consider six things together:
ACE offers several high-temperature lighting platforms for different industrial conditions, including the CHB Series High Temperature High Bay Light, ELHB Series LED Linear High Bay Light, and LHB02 Series LED Linear High Bay Light.
The right choice depends on where and how the fixture will be used.
One of the most common specification mistakes is using the general workshop temperature as the basis for fixture selection.
That can be misleading.
Temperatures at worker level may be considerably lower than temperatures near the roof structure, above production equipment, or close to furnaces and exhaust paths.
A facility may report an average operating temperature of 45°C while the fixture mounting location regularly experiences 60°C or more.
For this reason, temperature should be measured at the intended luminaire position and, ideally, during the hottest part of the production cycle.
It is also worth considering:
A fixture should not be selected simply because its maximum temperature rating matches the highest number measured on site. Some operating margin is sensible, particularly in facilities where process conditions vary.
The CHB Series High Temperature High Bay Light is designed for high-temperature industrial environments with ambient temperatures up to 80°C (176°F).
The high-temperature versions of the ELHB Series and LHB02 Series are also designed for ambient temperatures up to 80°C.
That makes all three suitable for demanding applications, but temperature rating alone does not determine which one is best.
The layout and environment matter just as much.
Two fixtures can both carry an 80°C rating and still have very different thermal architectures.
High-temperature reliability depends on how effectively heat moves away from the LEDs, driver, and other temperature-sensitive components.
The fixture is already generating heat of its own. When the surrounding air is also hot, the available temperature difference for transferring that heat into the environment becomes smaller.
That places more demand on the luminaire’s thermal design.
When comparing products, look at:
The CHB Series uses a heavy-duty anodized aluminum profile that also functions as a large thermal-management surface.
This type of construction is well suited to large industrial areas where the fixture is expected to operate continuously under high thermal load.
The high-temperature ELHB Series uses a high-efficiency aluminum-alloy heat sink and a modular structure.
Its independent light modules can be adjusted for different beam directions while the fixture maintains a dedicated thermal path for high-temperature operation.
The LHB02 Series provides a more compact linear format for areas where installation space or lighting direction is more constrained.
Its high-temperature version is also designed around elevated ambient conditions, making it useful where a full-size high-bay fixture would be impractical.
Heat is rarely the only environmental challenge.
A foundry may have metallic dust and smoke.
A chemical plant may have corrosive vapors.
A heat-treatment facility may contain oil mist.
A food-processing line may involve steam, grease, and regular cleaning.
A glass facility may expose fixtures to dust and abrasive particles.
The correct fixture therefore needs protection against the complete environment, not just temperature.
For many dry, dusty industrial locations, an IP65-rated optical system may be appropriate.
Where stronger water exposure, washdown, steam, or heavier contamination is present, IP66 may be preferable.
But the IP number is only part of the story.
The materials responsible for maintaining the seal also matter.
Gaskets and enclosure joints repeatedly exposed to high temperature can harden, shrink, or lose elasticity if the material is unsuitable. Once the seal deteriorates, the original IP rating no longer tells the whole story.
The CHB Series uses IP65-rated optics together with a Fluoro-Elastomer FKM lens gasket.
FKM is particularly useful where heat and chemical exposure place additional stress on conventional sealing materials.
Corrosion-resistant and tempered-glass lens options are also available for more demanding industrial applications.
The ELHB Series uses IP66-rated tempered glass and a smooth rear surface designed to resist dust accumulation.
This makes it particularly attractive for environments with:
The LHB02 Series also offers IP66 protection with tempered glass, making it a practical option for compact areas where dust, moisture, and cleaning are concerns.
One high-temperature fixture rarely makes sense for every part of a large industrial facility.
A steel mill furnace bay may need powerful light from a high mounting position.
A chemical processing line may need narrow or directional illumination around equipment.
A compact boiler area may have limited mounting space and require light aimed at specific work surfaces.
The fixture form factor should follow the geometry of the space.
The CHB Series High Temperature High Bay Light is best suited to large, relatively open industrial spaces.
It delivers up to 73,000 lumens with efficacy up to 220 lm/W, allowing substantial output from high mounting positions.
Typical applications include:
Its strength is straightforward: high-output, heavy-duty illumination for difficult industrial environments.
The ELHB Series LED Linear High Bay Light is better suited to applications where beam control and flexibility are more important.
Its independent rotating modules and multiple optical options allow the light distribution to be adjusted around:
That makes it useful in chemical facilities, heat-treatment lines, processing areas, and other spaces where a single broad high-bay beam may not provide the best result.
The LHB02 Series LED Linear High Bay Light fits a different type of application.
Its compact form, adjustable irradiation direction, and optical options make it useful for tighter industrial spaces or areas where the light needs to be aimed more precisely.
Potential applications include:
A common purchasing mistake is starting with wattage.
“Do we need 150 W, 200 W, or 300 W?”
That question comes too early.
Wattage tells you how much electrical power the fixture consumes. It does not tell you whether the light reaches the work surface effectively.
The better questions are:
A lower-wattage fixture with the correct optics can sometimes outperform a higher-wattage fixture with poor distribution.
This is where photometric planning matters.
For large open areas, CHB’s high lumen output may make sense.
For complex production lines, the adjustable modules of ELHB can direct more of the available light toward useful surfaces.
For compact areas, LHB02 can provide more targeted coverage without unnecessarily illuminating surrounding space.
High-output industrial lighting can consume a substantial amount of electricity, especially in plants running multiple shifts.
Luminous efficacy—measured in lumens per watt—shows how effectively a fixture converts electrical power into light.
ACE’s high-temperature options include:
High efficacy matters for two reasons.
The first is obvious: lower energy consumption.
The second is particularly relevant in high-temperature environments: achieving the required light output with less electrical input can reduce unnecessary self-generated thermal load inside the lighting system.
That does not replace proper thermal design, but it helps.
For facilities running lighting continuously, energy efficiency should therefore be considered part of the lifecycle calculation rather than a secondary feature.
A fixture that is easy to install but difficult to service can become expensive later.
High-bay lighting is often mounted above production equipment, furnaces, process lines, or inaccessible work areas.
Every maintenance event may involve:
The design of the fixture can make a major difference.
The ELHB Series uses a modular architecture that allows LED modules or power-supply modules to be serviced independently rather than replacing the entire fixture.
It also offers field-adjustable power, which can reduce the number of separate fixture configurations facilities need to stock.
ACE states that this can reduce SKUs by up to 80%, depending on the project configuration.
The ELHB Series also supports pluggable sensor options, giving facilities the ability to add motion or daylight-based controls without replacing the complete fixture.
The CHB Series takes a different approach.
It is aimed more at large high-temperature areas where the priority is robust, long-term operation with fewer maintenance interventions.
When deciding between them, ask whether the site values maximum rugged simplicity or greater serviceability and configurability.
Even the correct fixture can perform poorly if installed badly.
During site planning, consider:
A luminaire mounted directly above a furnace opening may face significantly more thermal stress than the general room temperature suggests.
Likewise, installing a fixture in a tight cavity can trap hot air around the housing and undermine the thermal design.
The safest approach is to evaluate both ambient temperature and local heat exposure.
Fixture placement can sometimes make as much difference to longevity as fixture selection.
Not every high-temperature industrial space needs smart controls.
But some do.
If an area has changing occupancy, variable daylight, or different production schedules, controls can reduce unnecessary operating hours or output.
The ELHB Series can support:
This is particularly useful in mixed-use facilities where some high-temperature zones need full output continuously while others are used only periodically.
Smart controls should not be treated as a mandatory feature. They should be used where the operating pattern makes them worthwhile.
A product description that says “high temperature” is not enough.
Industrial buyers should ask how the fixture was developed and validated.
Relevant testing may include:
ACE supports product development through its CNAS-accredited laboratory, together with in-house R&D, mold development, manufacturing, and quality-control capabilities.
ACE also offers products designed to meet relevant North American and European certification requirements for applicable markets.
The exact certifications required should always be confirmed against the project, country, and application.
This is especially important in applications involving hazardous-location requirements. A high temperature rating or IP66 enclosure does not by itself make a fixture suitable for a classified hazardous area. Where flammable gases, vapors, or combustible dust are present, the lighting must carry the appropriate hazardous-location certification for that specific environment.
| Facility Condition | Recommended ACE Series | Why |
|---|---|---|
| Large foundry or steel mill bay | CHB | High output, up to 80°C, heavy-duty construction |
| Furnace-adjacent open area | CHB | Strong thermal design and high lumen package |
| Chemical/process production line | ELHB | Adjustable modules, IP66, flexible optics |
| Complex machinery layout | ELHB | Directional control and modular serviceability |
| Compact hot equipment room | LHB02 | Smaller linear format and adjustable direction |
| Industrial oven or inspection zone | LHB02 | Targeted light and IP66 protection |
| Multi-zone facility | CHB + ELHB + LHB02 | Different fixtures matched to different operating conditions |
Before placing an order, ask your lighting supplier these questions:
If the supplier cannot answer these questions clearly, it is worth reconsidering the specification.
The point of having CHB, ELHB, and LHB02 is not to create three versions of the same product.
They are intended for different lighting problems.
The CHB Series is the heavy-duty option for large, open, very hot industrial spaces.
The ELHB Series adds flexibility, modularity, IP66 protection, controls, and adjustable optics for more complicated production environments.
The LHB02 Series provides a more compact, directional solution for targeted high-temperature applications.
A properly designed industrial project may use all three.
That is often a better approach than trying to force one fixture type into every area of the plant.
ACE focuses on industrial, commercial, and agricultural lighting, with particular experience in harsh-environment and technically demanding applications.
For years, ACE has provided ODM and OEM services for established European and North American brands.
Product design, R&D, mold development, production, laboratory testing, and quality management are supported by in-house teams. ACE also operates a CNAS-accredited laboratory and has lighting designers who can support photometric planning and customized project solutions.
For high-temperature lighting projects, that support can be particularly useful because the fixture itself is only one part of the solution.
A successful system also depends on:
Choosing high-temperature industrial lighting is not primarily about finding the highest wattage, the highest lumen number, or the lowest initial price.
It is about matching the fixture to the environment.
Start with the real temperature at the mounting point. Understand dust, moisture, chemicals, and cleaning conditions. Choose the right IP protection and materials. Match the optics to the space. Think about maintenance before installation. Consider energy efficiency over the life of the system. And make sure the manufacturer’s claims are supported by meaningful engineering and testing.
For large high-temperature industrial halls, ACE’s CHB Series High Temperature High Bay Light provides heavy-duty output and thermal performance.
For complex production environments, the ELHB Series LED Linear High Bay Light offers greater optical flexibility, modular maintenance, and IP66 protection.
For compact or precision applications, the LHB02 Series LED Linear High Bay Light provides a smaller, adjustable solution without giving up high-temperature capability.
The right fixture is not necessarily the same fixture everywhere.
The goal is to put the right light in the right part of the facility.
To learn more about ACE’s high-temperature industrial lighting solutions:
https://www.aceledlight.com/high-temperature-industrial-lighting-solutions/
