{"id":37469,"date":"2026-09-23T08:00:00","date_gmt":"2026-09-23T07:00:00","guid":{"rendered":"https:\/\/jelproducts.nl\/?p=37469"},"modified":"2026-07-09T21:43:59","modified_gmt":"2026-07-09T20:43:59","slug":"what-is-high-temperature-lighting-and-how-does-it-work","status":"publish","type":"blog","link":"https:\/\/jelproducts.nl\/en\/blog\/wat-is-hoge-temperatuur-verlichting-en-hoe-werkt-het\/","title":{"rendered":"What is high temperature lighting and how does it work?"},"content":{"rendered":"<p>High-temperature lighting is a category of industrial LED fixtures specifically designed to function reliably in environments with extreme heat, often above 60\u00b0C to 120\u00b0C or higher. Standard LED lighting fails in such conditions because the electronics and LED chips overheat, leading to light output failure, color shift, or permanent damage. This article answers the most frequently asked questions about how high-temperature lighting works, when you need it, and how to make the right choice.<\/p>\n<h2>What temperatures make standard LED lighting unsuitable?<\/h2>\n<p>Standard LED fixtures are typically designed for ambient temperatures up to a maximum of 40\u00b0C to 50\u00b0C. As soon as the temperature structurally exceeds that limit, the lifespan of the LED chips and the driver rapidly decreases. Above 60\u00b0C, most conventional fixtures begin to fail or perform structurally below their specifications.<\/p>\n<p>The problem is not just the immediate ambient temperature. LED chips also produce heat themselves, and if that heat has nowhere to go, the so-called junction temperature (the temperature on the chip itself) rises rapidly. That accelerates light degradation and can permanently damage the chip.<\/p>\n<p>In practice, this means that environments such as steel mills, foundries, glass furnaces, the paper industry, and high-temperature climate chambers are simply unsuitable for standard LED lighting. Not because LED as a technology is poor, but because the thermal engineering of a standard fixture is not built for those conditions.<\/p>\n<h2>How does cooling work in high-temperature fixtures?<\/h2>\n<p>Cooling in high-temperature luminaires is not an afterthought, it is the core of the design. Where a standard luminaire uses passive cooling via a simple aluminum housing, specialized luminaires go much further. The heat produced by the LED chip must be actively dissipated to a zone outside the luminaire, or the luminaire must be thermally dimensioned in such a way that the chip temperature remains within safe limits.<\/p>\n<p>The most used techniques are:<\/p>\n<ul>\n<li><strong>Advanced heat pipe systems:<\/strong> Heat is rapidly dissipated via liquid or gas from the chip to a heat sink elsewhere in the luminaire.<\/li>\n<li><strong>Oversized heat sinks:<\/strong> Large aluminum or copper heat sinks increase the surface area for heat dissipation, even at high ambient temperatures.<\/li>\n<li><strong>Thermal insulation of the driver:<\/strong> The electronic driver is sometimes placed physically separate from the light source to prevent ambient heat from reaching the electronics.<\/li>\n<li><strong>Special housing materials:<\/strong> Some luminaires use materials with high thermal conductivity to quickly dissipate heat.<\/li>\n<\/ul>\n<p>The result is a luminaire that continues to function stably even at ambient temperatures of 80\u00b0C, 100\u00b0C, or even 120\u00b0C, without any significant decline in light output or lifespan.<\/p>\n<h2>What is the difference between heat and infrared radiation as a load?<\/h2>\n<p>This is a distinction that is often underestimated in practice. High ambient temperature and direct exposure to infrared radiation are two different types of thermal load, and they require different technical measures in a luminaire.<\/p>\n<p>Ambient temperature is the air temperature surrounding the luminaire. A luminaire in a hot 80\u00b0C hall deals with heat transfer via convection and conduction. The cooling must ensure that the internal components stay cool enough despite that ambient heat.<\/p>\n<p>Infrared radiation is different. In environments such as steel mills, glowing hot materials, such as liquid steel or hot plates, emit direct infrared radiation. That radiation hits the outside of the luminaire and is converted into heat, on top of the already high ambient temperature. A luminaire that is only designed for high air temperatures, but not for IR exposure, can still overheat.<\/p>\n<p>Valves specifically developed for steel mills and similar environments therefore combine heat-resistant housings with reflective or insulating surface treatments that reflect infrared radiation instead of absorbing it. <a href=\"https:\/\/jelproducts.nl\/en\/high-temperature-lighting\/\">High-temperature lighting<\/a> therefore, always take both forms of thermal load into account.<\/p>\n<h2>Which sectors need high temperature lighting?<\/h2>\n<p>The need for temperature-resistant lighting is broader than many people think. It is not just about the most extreme cases such as steel mills. Every sector where the ambient temperature structurally exceeds 50\u00b0C, or where heat sources are present near the lighting, benefits from specialized luminaires.<\/p>\n<p>Sectors where high-temperature lighting is regularly needed:<\/p>\n<ul>\n<li>Steel industry and foundries (ambient temperatures up to 120\u00b0C, combined with IR radiation)<\/li>\n<li>Glass production and ceramic industry<\/li>\n<li>Paper industry (drying cylinders and press sections)<\/li>\n<li>Climate chambers and test facilities (both high and low temperatures)<\/li>\n<li>Chemical industry with exothermic processes<\/li>\n<li>Bakeries and food processing industry with high process temperatures<\/li>\n<li>Recycling plants with combustion processes<\/li>\n<li>Power plants and biomass installations<\/li>\n<\/ul>\n<p>What these sectors have in common is that lighting must not only perform, but that failure has immediate consequences for safety and productivity. In environments where people work with hazardous materials or heavy machinery, reliable lighting is no luxury.<\/p>\n<h2>When is ATEX certification also required in addition to temperature resistance?<\/h2>\n<p>Temperature resistance and ATEX certification are two separate requirements that sometimes occur together, but not always. ATEX is required when an explosive atmosphere can occur in a room due to the presence of flammable gases, vapors, mists, or dust. In that case, all electrical equipment, including lighting, must comply with specific safety requirements to prevent ignition sources.<\/p>\n<p>The combination of high temperatures and explosion hazards occurs in sectors such as the chemical industry, refining, offshore installations, and certain parts of the paper and food industries. In those situations, a luminaire is required that can both handle the thermal load and is certified for use in hazardous areas.<\/p>\n<p>It is important to know that a high-temperature luminaire without ATEX certification cannot simply be used in a hazardous area, even if it is technically heat-resistant. The two requirements are separate from each other and both must be guaranteed. If in doubt about the zone classification of a room, it is advisable to consult a technical advisor.<\/p>\n<h2>How do you choose the right high temperature fixture for your situation?<\/h2>\n<p>The right choice starts with a good analysis of the environment. Not every situation is the same, and a luminaire that works perfectly in the paper industry is not automatically suitable for a steel mill. There are a number of concrete factors that determine which luminaire you need.<\/p>\n<ol>\n<li><strong>Determine the maximum ambient temperature:<\/strong> Measure or estimate the highest temperature that the luminaire structure will experience, not just the average temperature.<\/li>\n<li><strong>Assess whether infrared radiation is present:<\/strong> Is there a direct heat source nearby, such as glowing material or an oven? Then a luminaire that can also handle IR radiation is required.<\/li>\n<li><strong>Check for the presence of corrosive substances or moisture:<\/strong> High temperature is sometimes accompanied by steam, chemicals, or sea air. The IP rating and enclosure material must be suited to this.<\/li>\n<li><strong>Determine whether ATEX is required:<\/strong> Is the area classified as a hazardous explosion zone? Then ATEX certification is a strict requirement.<\/li>\n<li><strong>Consider maintenance and accessibility:<\/strong> Valves in extreme environments are often difficult to access. A long service life and low maintenance are therefore extra important.<\/li>\n<li><strong>Request a lighting design:<\/strong> Especially in large or complex spaces, a professional lighting plan is the basis for the correct fixture selection and positioning.<\/li>\n<\/ol>\n<p>A good supplier thinks along with you about these factors and delivers not just a fixture, but a solution that fits the specific requirements of your environment.<\/p>\n<h2>Practical example: High-Temperature Industry at Rockwool<\/h2>\n<p>A good example of how high-temperature lighting is applied in practice is the project at Rockwool. Rockwool produces insulation material based on stone wool, a process in which raw materials are melted at extremely high temperatures. The production environment combines intense radiant heat from the melting furnaces with high ambient temperatures and dust loads, a combination that is unworkable for standard LED fixtures.<\/p>\n<p>The technical challenge was multifaceted. The luminaires not only had to handle the high ambient temperature, but also withstand the direct infrared radiation from the melting processes. At the same time, the lighting had to provide sufficient light intensity for safe working in an environment where visibility is crucial. Standard industrial luminaires failed quickly or performed too poorly due to thermal overload.<\/p>\n<p>The chosen solution was a luminaire with a thermally optimized housing and a driver physically separated from the heat source. By placing the driver outside the direct heat zone, the electronics remained within safe temperature limits, while the light source itself was equipped with materials that remain stable even at high temperatures. As a result, the maintenance frequency could be significantly reduced, which is a major operational advantage in an active production environment.<\/p>\n<p>The lesson this project yields is that high-temperature lighting is never a standard product. Every environment imposes its own requirements, and only a luminaire specifically designed for the combination of thermal factors in that environment delivers sustainable performance. More examples of similar projects can be found at <a href=\"https:\/\/jelproducts.nl\/en\/projects\/\">JEL Products&#x27;s Projects Page<\/a>.<\/p>\n<h2>How JEL Products helps with high temperature relief<\/h2>\n<p>JEL Products develops and supplies LED luminaires specifically built for the most demanding industrial environments, including extreme heat, infrared radiation, and combinations of corrosion or explosion hazards. The Orca and Barracuda floodlights are specifically designed for environments such as steel mills, with a temperature resistance of up to 120\u00b0C. For climate chambers and test facilities, there are luminaires that operate in a range from minus 45\u00b0C to plus 120\u00b0C.<\/p>\n<p>What sets JEL Products apart is the approach as a full-service partner:<\/p>\n<ul>\n<li>Technical advice based on your specific environmental conditions<\/li>\n<li>Lighting design and engineering tailored to the situation<\/li>\n<li>Supply of luminaires with the correct thermal, IP and, where applicable, ATEX specifications<\/li>\n<li>Guidance during installation and commissioning<\/li>\n<li>Long-term maintenance and management support<\/li>\n<\/ul>\n<p>Whether it is a steel plant, a climate chamber, or a chemical facility, the right lighting begins with the right analysis. Do you want to know which solution fits your situation? <a href=\"https:\/\/jelproducts.nl\/en\/contact\/\">Get in touch<\/a> and discuss your issue with a specialist.<\/p>","protected":false},"excerpt":{"rendered":"<p>Standard LEDs fail above 60\u00b0C \u2014 discover how high-temperature lighting reliably illuminates extreme industrial environments.<\/p>","protected":false},"author":1,"featured_media":37675,"template":"","categories":[1],"tags":[],"class_list":["post-37469","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Wat is hoge temperatuur verlichting en hoe werkt het? | JEL Products<\/title>\n<meta name=\"description\" content=\"Hoge temperatuur verlichting werkt tot 120\u00b0C waar standaard LED faalt. 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