What does this mean for your situation?
Send us the dimensions and the conditions and we will calculate it to EN 12464-2, so you receive a lighting plan with luminaires and positions.
Request a lighting calculationOr look at the luminaires first
The complete range of heat-resistant, high-temperature LED light fixtures and fittings for steel mills, foundries, glass production, furnaces, bakeries, paper mills and process industries. From compact work lights to 65,000 lumen floodlights.
Above +50 °C ambient temperature standard LED lighting grinds to a halt: the driver gives up, lenses deform and light output collapses. JEL Products is the only European specialist supplying a fully heat-resistant LED line for continuous operation up to +120 °C, with warranty. Brief peaks up to +130 °C are permitted. The secret is the system design: heat-resistant materials, chemically hardened glass, silicone cabling and the driver outside the hot zone in an external DRB driver box. Proven daily at Tata Steel, VPK Paper, Farm Frites and Rockwool.
Continuous operation, with 5-year warranty
L90B05 at +120 °C, over 11 years continuous
Most powerful luminaire of the line, Orca HT
The right choice does not start with lumens but with the ambient temperature at the mounting position. Measure or estimate the temperature where the luminaire will hang, not at shop floor height: under a roof or above a process line it is often tens of degrees higher.
Within the normal operating temperature range our standard DCbright range suffices: floodlights and work lights specified from -40 °C to +50 °C. Heat-resistant versions are not needed here; that saves on the investment.
The domain of the HT line. All six heat-resistant LED lights can be deployed here in AC versions, up to +120 °C with full warranty. DC versions (24V) for machines and installations with low-voltage power supplies can be deployed up to +110 °C.
Brief temperature peaks up to +130 °C are permitted without consequences for the warranty. Think of furnace doors opening, batch changes or cleaning cycles with hot steam: the luminaires are designed for it.
Above +130 °C the standard warranty ends and it becomes custom work. Our engineers calculate per position what is possible with shielding, remote mounting and HT glass optics. Even if your environment has no solution yet, we go all the way with our engineering and custom projects.
The right choice depends not only on lumens or wattage, but above all on application and mounting position. This is the ladder from compact to powerful.
The compact heat-resistant work light for task and inspection lighting close to the process, and for small rooms such as climate chambers. From 2,600 lumens.
The proven all-rounder of the HT line, also available fully in 316L stainless steel for the food industry and corrosive environments. The CHEM version exists for chemically aggressive processes; it deliberately carries a 3-year warranty because of the aggressiveness of the environment.
The heat-resistant canopy light for drying tunnels and ceiling mounting in hot process areas.
The robust mid-range floodlight for halls and process lines where heat and mechanical load come together.
Linear light across the web width, from 300 to 1,200 mm. The standard above paper machines and dryer sections.
The most powerful of the line, up to 65,000 lumens, with HT glass optics of 20, 40 or 60 degrees for directed beams on high positions.
The heart of the system: external driver boxes that keep the driver outside the hot zone. Minimum 100,000 hours at Tc 75 °C, minimum 130,000 hours at Tc 50 °C, IP67.
| Product | Type | Power | Luminous flux | Max. Ta AC / DC | Versions |
|---|---|---|---|---|---|
| Goby HT | compact work lamp | 13 W | 2600 lm | +120 / +110 °C | AC and DC 24V |
| Snapper HT | all-round floodlight | 35 W | 7,000 lm | +120 / +110 °C | AC, DC, 316L SS and CHEM |
| Manta HT | canopy light | 75 W | 14,400 lm | +120 °C, AC | surface-mounted and recessed |
| Barracuda HT | mid-range floodlight | 120 W | 20,600 lm | +120 °C, AC | aluminium and 316L |
| Linear HT | linear, 300 to 1,200 mm | 30 to 120 W | 6,400 to 25,600 lm | +120 / +110 °C | AC and DC, optics 20/40/60/120° |
| Orca HT | high-output floodlight | 240 or 320 W | 51,000 to 65,000 lm | +120 °C, AC | HT glass optics 20/40/60° |
| DRB-1 / DRB-2 | external driver box | up to 320 / 2,000 W | n/a | cool zone, +50 °C | IP67, cable up to 25 m |
Values per version at Ta 25 °C, including driver consumption. DC versions (24V) can be used up to +110 °C; all AC versions up to +120 °C continuously, with peaks up to +130 °C without warranty consequences.
In every LED luminaire the driver is the most heat-sensitive component. Whoever hangs a standard luminaire in a hot environment sees not the LED but the driver fail first. That is why the JEL system design separates the two: the luminaire hangs in the hot zone and is built to withstand it; the driver sits up to 25 metres away in a cooler zone, in an IP67 DRB driver box with a lifespan of minimum 100,000 hours at Tc 75 °C and minimum 130,000 hours at Tc 50 °C.
The connection runs through heat-resistant silicone cable. The result: maintenance happens in the cool zone, not at height above a hot process.
And what does hang in the heat reflects the radiation back
That much of the infrared radiation between 800 and 2500 nm is reflected by the gold-coloured IR reflector in the luminaire. Radiant heat that hits the luminaire goes back into the process instead of into the housing.
Maintenance without production stop: service happens in the cool zone, the hot zone does not need to be entered.
Lifespan at high temperatures is not a single number, and anyone who promises one is hiding the physics: every extra 10 degrees roughly halves the lifespan of electronics. That is why we publish the full curve, measured as L90B05: the number of operating hours after which at least 90 percent of the light output remains, with at most 5 percent failures.
For comparison: 51,400 hours at +120 °C is over 11 years of continuous operation in a position where standard LED lighting fails within months.
Whoever buys on purchase price pays three times in a hot environment: for the luminaire, for the replacement and for the downtime or aerial platform that comes with it. Calculate with cost per 10,000 operating hours including installation, and the HT line beats every cheap replacement cycle. Do you want the calculation for your situation? Use the Savings calculator or request the calculation from us.
Every replacement above a hot process is a risk moment: working at height, in heat, often during a costly stop. A lifespan of decades simply means fewer of those moments.
Ambient temperature measured at mounting height
Driver position and Tc temperature
Glass instead of plastic optics
Silicone instead of PVC cabling
Lifespan as a curve, not a single number
Warranty conditions at continuously high temperature
Mounting hardware and thermal expansion
Cleanability with dust and grease
The four mistakes we encounter most often: mistaking a standard luminaire with a high IP rating for heat-resistant (IP says nothing about temperature); taking the driver into the hot zone; plastic lenses above infrared radiation; and applying lifespan figures from a datasheet at +25 °C to an environment of +90 °C.
Radiant heat from glowing steel is decisive here. Resistant to direct infrared radiation, driver outside the hot zone, chemically hardened glass, mounting above rolling lines and casting platforms. Proven at Tata Steel IJmuiden.
Also for rolling mills, continuous casting and mounting above casting platforms.
Heat, steam and dust combined above the dryer section. IP67 housing against condensation, replacement only during machine stops, linear light across the web width. Proven at VPK Paper.
From drying section to corrugated board line.
Resistant to heat and daily cleaning cycles. 316L stainless steel versions, glass instead of plastic, grease-vapour-resistant seals. Proven at Farm Frites.
Also for bakeries, sterilisation lines, laundries and frying lines.
Cyclic loading from extreme heat to frost. AC up to +120 °C and DC up to +110 °C, condensation-resistant, compact Goby HT for small chambers, dimmable for test protocols.
Also for burn-in rooms and cyclic test protocols.
Radiant heat from glowing product and high ambient temperatures. HT glass optics for directed beams on inspection positions, high colour rendering for quality control.
From glass furnaces and tempering to smelters.
Continuous use up to +120 °C around annealing furnaces, drying tunnels and process installations. Custom recessed and feed-through solutions, engineering calculated per position.
Steel process: positions where conventional lighting kept failing.
GOHT01 · GOHT02
| Luminous flux | 2600 lm |
| Power | 13 W, 200 lm/W |
| Beam | 120° extra-wide |
| Environment | AC +120 °C, DC 24V +110 °C, peaks +130 °C |
| Protection | IP66/67/68/69K, IK09 |
| Front | chemically hardened glass |
| Cable | silicone, to DRB driver box (AC) |
| Warranty | 5 years up to +120 °C |
SNHT01 to SNHT05
| Luminous flux | 7,000 lm |
| Power | 35 W, 200 lm/W |
| Beam | 120° extra-wide |
| Environment | AC +120 °C, DC 24V +110 °C, peaks +130 °C |
| Protection | IP66/67/68, SS and CHEM also IP69K, IK08 |
| Versions | AC, DC, 316L SS (AC and DC), CHEM |
| Warranty SS | 20 years on the 316L housing, 5 years on the rest |
| Warranty CHEM | 3 years, because of the aggressiveness of the environment |
MNHT01 · MNHT02
| Luminous flux | 14,400 lm |
| Power | 75 W, 192 lm/W |
| Beam | 120° extra-wide |
| Environment | AC +120 °C, peaks +130 °C |
| Protection | IP66/67/68/69K, IK08 |
| Mounting | surface-mounted (MNHT01) or recessed (MNHT02) |
| Application | drying tunnels, ceilings of warm process rooms |
| Warranty | 5 years up to +120 °C |
BAHT01 · BAHT03
| Luminous flux | 20,600 lm |
| Power | 120 W, 172 lm/W |
| Beam | 120°, HT optics 20/40/60° on request |
| Environment | AC +120 °C, peaks +130 °C |
| Protection | IP66/67/68/69K, IK09 |
| Versions | aluminium (BAHT01) or 316L (BAHT03) |
| Cable | SiHF-OB silicone, 15 m, to BLD320 in DRB-1 |
| Warranty | 5 years up to +120 °C |
LVHT01 to LVHT08
| Luminous flux AC | 6,400 to 25,600 lm, 300 to 1,200 mm |
| Luminous flux DC | 3,900 to 15,600 lm |
| Power | AC 30 to 120 W, DC 22 to 88 W |
| Beam | 20°, 40°, 60° or 120° |
| Environment | AC +120 °C, DC 24V +110 °C, peaks +130 °C |
| Protection | IP66/67/68/69K, IK09 |
| Application | linear light across the web width |
| Warranty | 5 years up to +120 °C |
ORHT01 · ORHT02
| Luminous flux | 51,000 lm (240 W) to 65,000 lm (320 W) |
| With HT optic | 39,000 to 52,000 lm |
| Power | 240 or 320 W, up to 230 lm/W |
| Beam | 120°, or HT glass optics 20/40/60° |
| Environment | AC +120 °C, peaks +130 °C, AC only |
| Protection | IP66/67/68/69K, IK09 |
| Front | chemically toughened glass or borosilicate |
| Warranty | 5 years up to +120 °C |
DRB-1 · DRB-2
| DRB-1 | one driver up to 320 W, 276 × 194 × 86.5 mm, 4.2 kg |
| DRB-2 | systems up to 2,000 W, 441 × 290 × 145 mm, 10.4 kg |
| Protection | IP67 |
| Placement | cool zone, maximum +50 °C, up to 25 m from the luminaire |
| Driver lifespan | minimum 100,000 hours at Tc 75 °C, 130,000 hours at Tc 50 °C |
| Control | mains, 0-10 V, DALI or LoRa Mesh |
| Maintenance | in the cool zone, without entering the hot zone |
For each product type, the datasheet and the photometric files are ready for direct download above: all versions and optics in EULUMDAT (.ldt), which DIALux and Relux read directly. 3D files and IES are available on request. View all datasheets and photometric files · Download the HT collection 2026 (pdf)
The questions we get every week, answered honestly. Is your question not listed? Call 033 785 9809 or ask it via the form.
Our AC luminaires operate continuously up to +120 °C ambient temperature, DC versions (24V) up to +110 °C. Brief peaks up to +130 °C are permitted without consequences for the warranty. Above +130 °C we offer custom solutions through engineering.
That depends on the ambient temperature, which is why we publish the full curve: L90B05 360,000 hours at +50 °C, 103,000 hours at +85 °C, 71,700 hours at +105 °C and 51,400 hours at +120 °C.
The driver is the weakest point: above its specified temperature it ages rapidly and fails, long before the LED itself wears out. Plastic lenses also deform and standard cables dry out.
IP says something about dust and water tightness, nothing about temperature. An IP69K luminaire can still fail within months at +80 °C if the driver and materials were not designed for it.
Yes. HT versions carry a 5-year warranty on the complete luminaire, with additional HT conditions. The Snapper CHEM-HT carries 3 years because of the aggressiveness of chemical environments.
Because the driver is the most heat-sensitive component. In our system design it sits up to 25 metres outside the hot zone in a DRB driver box with a minimum lifespan of 100,000 hours at Tc 75 °C. Maintenance therefore happens in the cool zone.
Choose by mounting position and light requirement: Goby HT for compact and close-up, Snapper HT as the all-rounder, Linear HT above webs, Orca HT for high positions with high lumen output. Our lighting advisor calculates the positions.
Yes. The Barracuda HT and Orca HT are IP69K-rated: resistant to high-pressure and steam cleaning at close range. The Snapper HT is IP67 in aluminium and IP69K in the 316L stainless steel version. Precisely in the food industry, where daily cleaning cycles and heat come together, this is a decisive property.
The AC luminaires have built-in temperature feedback that protects the luminaire against itself. If the internal temperature rises too high, for example due to heavy fouling on the cooling fins, the luminaire automatically dims down: with good airflow this is usually limited to around 50% of the luminous flux, in the most extreme case to 10%. In case of overheating the luminaire switches itself off completely. DC versions do not have this derating: they run at 100% up to +110 °C, with only a slight decrease in efficiency due to the high temperature. Regular cleaning of the cooling fins prevents derating from being needed.
Yes. The Snapper HT is available fully in 316L stainless steel, resistant to heat and daily high-pressure and steam cleaning. Fully 316L versions carry a 20-year warranty on the housing.
No. High temperature and explosion safety are different domains; our HT line is for hot, non-explosive zones. For ATEX zones we gladly refer you to specialised partners.
Yes. We deliver and support across the UK and Ireland, with CE and UKCA documentation, English datasheets and short lead times from the Netherlands.
Our fixtures are designed for industrial environments up to +120 °C, not for domestic fireplace surrounds. For compact industrial positions from +50 °C upwards, the Goby HT is the right choice.
In many cases, yes. Contact us to discuss a trial position in your process; we calculate the position in advance.
Not as a complete LED luminaire: above roughly +130 °C the electronics are the limit, for us and for everyone. Offers promising higher temperatures usually concern tube fittings with a porcelain lampholder and a classic lamp, with the efficiency and lifespan to match. The honest solution above +130 °C is engineering: remote mounting, shielding and directed optics from a cooler position.
Standard industrial LED luminaires are specified from -40 °C to +50 °C. The HT series reaches +120 °C through a combination of measures: the driver sits outside the hot zone in a DRB driver box, the cabling is made of heat-resistant silicone, optics are glass instead of plastic, and the housing is made of specially selected and treated materials that withstand continuous heat.
Little. Maintenance is limited to cleaning the glass and cooling fins during planned stops: fouling insulates and raises the temperature of the luminaire. Because the driver sits outside the hot zone, driver service can even take place during production. So no line needs to be shut down for the lighting.
The AC versions are powered via the DRB driver box with a wide input range, suitable for common industrial mains voltages. In addition, 24V DC versions are available for mobile and machine-mounted applications. These are thermally limited to +110 °C ambient temperature.
Describe the position, the temperature and the process. An engineer assesses your situation, calculates the mounting position and tells you honestly what is and is not possible.
We will respond within 1 business day.
You are speaking to an engineer, not a salesperson
Free lighting design, trial position negotiable, 5-year warranty on HT
Prefer direct contact?
Photos of the position or the current luminaire help our engineers enormously. pdf, jpg or png · maximum 5 files · 15 MB
We use your data solely to assess your request.
