Lighting high-temperature industrial environments—such as steel mills, foundries, glass factories, chemical plants, and heat-treatment facilities—is one of the most challenging tasks in industrial engineering. These areas often experience ambient temperatures exceeding 70°C (158°F), combined with dust, corrosive chemicals, oil mist, vibration, and moisture.If not done carefully, improper lighting selection and design in such severe conditions can result in frequent failure, significant safety risks, production delays and increasing maintenance costs.
Facility managers and purchasing agents unknowingly make these same mistakes when choosing lights for their harsh environment facilities. In this combined article, we will uncover the biggest mistakes and show you how ACE’s CHB Series High Temperature LED High Bay and ELHB Series LED Linear High Bay lights are designed to operate safely, reliably and efficiently where ordinary fixtures cannot even work.
One of the most costly mistakes is assuming that typical industrial LED fixtures—usually rated for 40°C to 50°C—can withstand environments that regularly exceed 60°C. At extreme temperatures, standard lights quickly experience:
Rapid light decay
Driver capacitor failure
Distorted lenses or melted plastics
Severely reduced lifespan (sometimes months instead of years)
ACE’s CHB and ELHB Series are purpose-built for the most demanding heat-intensive applications:

Operates reliably up to 80°C (176°F)
Heavy-duty anodized aluminum heat sink
Corrosion-resistant coating
IP65 optics withstand dust, dirt, steam, and chemicals
Delivers up to 73,000 lumens and 220 LPW efficiency
Optional tempered glass or corrosion-resistant glass lens

High-temperature version rated for 80°C
High-efficiency aluminum alloy heat sink
Smooth, dust-resistant backside
Modular design for easy driver or LED module replacement
Up to 200 LPW with stable lumen output at extreme temperatures
These fixtures are not modified versions of standard high bays—they are engineered from the ground up to survive where ordinary lighting fails.
High-temperature areas often contain airborne contaminants including:
Dust and fine particulates
Corrosive chemicals or gases
Moisture and steam
Oil mist
Metal shavings
Using poorly sealed fixtures or standard rubber gaskets results in:
Heat sink clogging
Moisture penetration
Corrosion
Short circuits
ACE CHB Series

IP65-rated housing
Fluoro-Elastomer FKM lens gasket
Optional corrosion-resistant glass
Coated aluminum profile for chemical resistance
ACE ELHB Series

IP66-rated tempered glass
Dust-shedding smooth backside prevents heat buildup
Rugged housing for chemical-heavy environments
This robust protection preserves both photometric performance and electrical stability.
Some assume heavy-duty, high-temperature lighting cannot also be energy-efficient. This leads to choosing low-efficiency fixtures that require more power to produce the same brightness—resulting in:
Higher electricity bills
Poor visibility
Reduced worker safety
Inconsistent lighting in critical process areas
Both ACE CHB and ELHB Series deliver industry-leading performance:
The ELHB Series also offers:
Field-adjustable wattage
Field-adjustable CCT
Independent rotating light modules
Multiple beam angles for precision optics
You get powerful, uniform illumination without sacrificing energy efficiency or reliability.
High-temperature industrial facilities often face:
Costly shutdowns
Difficult maintenance access
Unpredictable layout changes
Many lighting products use fully integrated designs, meaning the entire fixture must be replaced when only one component fails. This drives up labor costs and production downtime.

Modular LED modules and drivers
Replace components individually
Reduce maintenance time and inventory by up to 80%
Multiple mounting options
Plug-and-play sensor compatibility (motion, daylight, smart controls)

Heavy-duty construction reduces maintenance frequency
Long lifespan even under continuous high temperatures
These customizable designs ensure your lighting adapts, scales, and remains serviceable.
Purchasing lighting from uncertified manufacturers or suppliers without deep harsh-environment experience risks:
Non-compliance with national safety standards
Poor quality control
Shortened lifespan
High failure rates
Lack of technical support
Risky installation outcomes
ACE ensures long-term reliability and safety with:
CNAS-accredited in-house laboratory
Comprehensive quality inspection system
Full North American and European certifications
Years of ODM/OEM experience for top global brands
In-house mold development and precision manufacturing
Professional lighting designers for customized project solutions
With ACE, you get lighting tailored to your facility’s exact needs—supported by industry-leading engineering and service.
High-temperature industrial environments demand much more than ordinary LED fixtures. By avoiding the common mistakes above—using generic lighting, ignoring contaminants, compromising efficiency, overlooking maintenance needs, or choosing uncertified suppliers—you can significantly improve:
Lighting reliability
Worker safety
Energy efficiency
Maintenance costs
Production continuity
ACE’s CHB Series and ELHB Series are engineered specifically to deliver long-lasting, high-performance illumination in the harshest industrial environments.
If you’re ready to design a lighting system that thrives under extreme heat, dust, chemicals, and moisture—ACE is your best partner.
📩 Contact ACE today to upgrade your high-temperature industrial lighting with certified, durable, and high-efficiency solutions.