Product quality in industrial lighting is not an abstract promise. It determines whether a fixture will continue to function reliably when conditions become harsh.
JEL Products supplies LED lighting for environments where standard fixtures often fall short. These include high temperatures, corrosive atmospheres, vibrations, moisture, dust, power surges, hard-to-reach mounting locations, and installations where downtime has a direct impact on safety, production, or maintenance costs.
Therefore, we do not assess quality based solely on lumens, wattage, IP rating, or warranty period. We look at the complete technical picture: material selection, thermal design, electronic protection, sealing, mechanical robustness, production testing, and suitability for the actual application.
Warranty on stainless steel housings
Stainless steel is particularly chosen for applications where corrosion, moisture, salt, chemical exposure, or cleaning play a significant role. The exact material choice depends on the environment and the load to which the fixture is exposed.
Warranty on DarkLicht
DarkLicht is often used in applications where light needs to be precisely directed, such as at terminals, outdoor areas, work zones, infrastructure sites, ports, and locations where light pollution or glare must be minimized.
Warranty on DCbright
DCbright luminaires are used in harsh industrial environments, mobile machinery, cranes, offshore applications, high-temperature environments, and other applications where durability and reliability are critical.
Under normal conditions, many LED fixtures work properly. The real differences arise when lighting is exposed to heavy loads for extended periods.
Heat is one of the main causes of accelerated degradation in LED lighting. Not only the LEDs themselves, but also drivers, seals, printed circuit boards, and electronic components are affected by temperature.
For high-temperature applications, we therefore look at more than just the maximum ambient temperature. Radiant heat, air circulation, mounting position, burn time, and driver location are also critical factors.
Salt, moisture, chemicals, acids, industrial pollution, and cleaning agents can affect housings, fastenings, cable glands, and connectors.
Therefore, corrosion protection is not just a matter of a coating. The right combination of material, surface treatment, sealing, and fastening material determines the lifespan of the fixture.
For tall masts, terminal areas, cranes, production lines, offshore installations, and hot process environments, maintenance costs are often higher than production costs.
A malfunction therefore means not only a defective fixture, but also aerial platform rental, downtime, safety measures, planning, access, permits, or loss of production. Precisely for this reason, reliability must be considered from the outset in product selection.
On cranes, vehicles, machines, ships, and industrial installations, lighting is mechanically stressed.
Vibrations can cause components to loosen, cable issues, fatigue of fixtures, or damage to electronics. Therefore, housing construction, strain relief, component fixation, and mounting quality are just as important as light output.
In heavy industrial installations, the electrical environment is not always clean or stable. Long cable runs, mobile machinery, generator power, inductive loads, and network pollution can lead to voltage spikes or electrical stress.
Therefore, electronic protections are important to help prevent damage to drivers, LED modules, and printed circuit boards.
Soldering: Traditionally, it is customary to solder components onto the printed circuit board using a fan oven. DCBright solders its components by using a special method in a liquid. This ensures a stronger bonding of the components to the PCB, but also a considerably lower porosity of the solder tin. A lower porosity reduces the risk of cracking. Furthermore, no oxidation can occur during soldering, due to the airtight environment in which the soldering takes place. The method originates from the aerospace industry and is rarely used in the lighting industry due to its higher costs.
Heat transfer: To ensure an optimum heat transfer from the PCB, DCBright places a heat-exchanging sheet between the PCB and its housing. This brings various advantages with respect to the commonly used cooling paste. Not only is there no longer any chance of the paste drying out, but it is also not possible for the paste to end up on components. Such a paste usually contains chemical components that are harmful to electronic components, so this is undesirable. The heat-exchanging sheet prevents short-circuiting and overheating of components and the lamp, giving both a longer life span.
Cable management: Practice has shown that moisture sometimes ends up in LED lamps via the cabling, with disastrous consequences. By applying a unique connection between cable and lamp, this danger does not exist with DCBright lamps.
Individual tested: After production each lamp is tested individually to determine whether the lamps meet our high quality standards. Every lamp is also monitored with a thermal camera to ensure that all specifications are met.
Moisture-free housing: The assembly of the lamps takes place in a room with low humidity. This results in both a low pressure and a low degree of humidity inside of the housing. This minimizes the risk of oxidation and condensation, resulting in an optimum light output. Hereby, the lamp is suitable for a wide variety of extreme conditions.
Screws: All screws are made of stainless steel 316 and sealed in the housing to prevent vibrations and corrosion.
Materials: All lamps and fixtures are made of high-quality aluminum. The aluminum is tested with an X-Ray scan to check whether it meets the quality requirements.
Paint: The aluminum housing is provided with a layer of “chrome conversion coating”, which promotes the corrosion resistance of the lamps. A dual layer of “powder paint” is then applied. Titanium is used in the powder paint in order to improve the heat transfer capacity of the housing.
PC sheets: The polycarbonate sheets used by DCBright are UV-coated PC sheets. This ensures durability and prevents discoloration.
Reversing the polarity of a device’s power supply can have serious consequences. Changing the positive and negative sides can lead to an burned printed circuit board or more complex problems. DCbright products with polarity protection are protected against accidentally wrong connecting the polarity.
There are various ways to counteract the effects of “reversed polarity.” A commonly used method consists of adding a diode to the supply line. The advantages of this method are its simple application and low costs. A major disadvantage of diodes is the huge voltage drop. Furthermore, this method has an efficiency loss of around 1%.
Another method is a so-called “active system”. The costs for this method are higher, but on the other hand there is no loss of efficiency.
In order to prevent damage to components due to excessive voltage, over voltage protection is applied. This is a protection that interrupts the power supply when the occurring voltage exceeds a preset voltage margin. As soon as the voltage exceeds the margin, the lamp switches off. When the voltage is within the set margin again, the lamp will switch on.
The light is protected against static voltage discharges on the connection wires.
Good thermal management has a lot of influence on the efficiency and reliability of LED lighting. A commonly used method is dimming by using a PMW (Pulse Width Modulation). The stroboscopic effects and electromagnetic interference that accompany this can, however, have negative consequences for the health of personnel and the functioning of electronics.
DCbright uses a system for thermal management that, with the help of a temperature sensor, prevents the maximum permissible temperature to be exceeded. In addition, maximum efficiency is achieved by adjusting the power in such a way that the lamp burns with a constant and stable temperature. No PWM is used for this, eliminating the disturbing stroboscopy and electromagnetic interference
A “dump load transient” is a component that can absorb power when the voltage exceeds a preset point. By making use of this absorbed power, the lamp can arm itself against voltage peaks in the supply line.
DCbright lamps are equipped with a dump load transient that meets the following requirements:
I EC 61000-4-2 exceeds level 4
30 kV (air discharge)
30 kV (contact discharge)
ISO10605 – C = 330 pF, R = 330 Ω
ISO 7637-2
Pulse 1: VS = -150
Pulse 2a: VS = +112 V
Pulse 3a: Vs = -220 V
Pulse 3b: Vs = +150 V
Formerly pulses 5a and 5b
ISO 16750-2 – Tests A and B
This protection is bit the same as the standard dump load protection. Only the difference is that this protection will adsorbed power in line with the led light. So it only eat some voltage of the ingoing power in case the voltage get out of spec and can’t be handled any more by a dump load way. The active dump load can switch of the power to the led light to protect it against the out of control surge.
Surge protection protects electronic components against voltage spikes. The surge protection that is applied in the DCBright lamps consists of a protection that remains stable up to 75 volts. If this value is exceeded, a maximum of 3000-6000 amperes is withdrawn, thereby smoothing out the voltage increase. This extraction takes place in a maximum of 8/20 µs, whereby the reaction speed is 1000 V/µs.
Generally, LED lighting uses printed circuit boards with heat transfer from 0.23 Wmk to 3 Wmk, but DCbright when focused to use the best for our customers. So we use a printed circuit board with a heat conduction up to 390wmk. Higher heat conductivity means that the LEDs become less hot. When the LEDs get less hot, the light emits more light and lasts a long time.
The short-circuit protection switches off the voltage supply if a short-circuit occurs in the lamp.
In many recent scientific studies, connections are made between physical and psychological complaints and the so-called “flickering” of LED lighting. Migraine, loss of concentration, eye strain and light-sensitive epilepsy are some possible consequences of LED lighting with a frequency that is registered by the brain, but cannot be “seen” with the eye.
To avoid this ever-increasing problem, DCbright uses completely flicker-free lamps! This is achieved by applying a frequency of 1 MHz for example. In addition, a capacitor is used to smoothe out wrinkles.
In order to make the lamps as vibration-resistant as possible, the heavier components are soldered ánd glued onto the PCB. Given the high absorbency of glue with regard to vibrations, this results in a considerably longer service life of both the components and the PCB. And screws that are used are special screws or they are sealed in.
DCbright lamps have a component that suppresses interference. As a result, less electromagnetic interference occurs and the chance of electronics malfunctioning near the lamps is reduced.
In order to prevent light pollution or ‘glare’ (light that falls outside the desired distribution angle), there are “low-glare” variants available for the vast majority of the products that DCbright offers.
Product quality means that a luminaire continues to function reliably under the conditions for which it was designed. For industrial LED lighting, this involves not only light output but also material selection, thermal design, sealing, electronic protection, mechanical robustness, and suitability for the application.
In industrial environments, lighting often faces heat, moisture, dust, corrosion, vibrations, voltage spikes, and hard-to-reach mounting positions. A defective fixture then not only leads to lamp replacement but often also to downtime, aerial platform rental, additional safety measures, and higher maintenance costs.
Not automatically. A fixture must suit the application. Sometimes a high-quality aluminum version with a coating is sufficient. In other situations, stainless steel, a higher temperature class, customized electronics, or different optics are necessary. The best solution is the version that technically fits the environment and the use.
Industrial LED lighting is designed for heavier loads. Think of more robust housings, better heat dissipation, stronger sealing, higher impact resistance, better corrosion protection, electronic protection, and suitability for long-term use in demanding conditions.
Because a technically sound fixture can still perform poorly when used in the wrong environment. Temperature, corrosion, vibrations, voltage, mounting position, and maintenance access all contribute to whether a fixture is suitable.
RVS lighting is particularly relevant in environments with high corrosion loads, such as offshore, maritime applications, coastal areas, the chemical industry, food production, or locations with aggressive cleaning.
316L stainless steel is used when corrosion resistance is especially important, for example in salt, chlorides, moisture, chemical exposure, or marine conditions. Not every environment automatically requires 316L, but for heavy corrosive loads, it is often the safer choice.
Not by definition. High-quality aluminum with the right coating can function excellently in many industrial environments. Stainless steel becomes particularly interesting when the corrosion load is so high that coating alone does not offer sufficient certainty.
The coating protects the housing from moisture, dirt, UV exposure, chemicals, and corrosion. The quality of the pretreatment, layer build-up, and application also determines how long the protection remains effective.
Not only the housing is important. Screws, brackets, cable entries, connections, lenses, coatings, and mounting points can also be susceptible to corrosion. Therefore, corrosion protection must be assessed as a complete system.
Depending on the product family and version, luminaires are checked for electrical function, visual finish, sealing, thermal behavior, and overall product quality.
Individual final inspection limits the risk of production errors becoming visible on-site. This is especially important for projects where fixtures are installed on high masts, cranes, offshore platforms, or in hard-to-reach positions.
Control points may include electrical function, photometric function, visual inspection, sealing, cable entry, strain relief, coating, lens quality, thermal behavior, and overall finish.
Thermal control helps assess whether heat is effectively dissipated and if components remain within safe temperature limits. This is important for light maintenance and lifespan.
Yes. For project-based applications, additional checks, documentation, specifications, or inspection points can be tailored to the project's requirements.
The lifespan is determined by the quality of LED modules, driver, thermal design, sealing, material selection, coating, electrical protection, and mounting method. In harsh environments, temperature, humidity, corrosion, and vibrations are often more decisive than the specified number of operating hours on paper.
The specified number of burning hours is usually based on controlled conditions. In practice, high ambient temperatures, poor ventilation, voltage spikes, moisture, or corrosion can significantly affect the lifespan. Therefore, lifespan should always be assessed in relation to the application.
Lumen maintenance indicates how much light output a fixture retains over time. LEDs often don't fail abruptly but slowly lose light output. Thermal design, LED quality, and driver load significantly influence this process.
Common causes include insufficient heat dissipation, incorrect material selection, moisture ingress, voltage spikes, vibrations, corrosion, poor sealing, driver overload, or operation outside of technical specifications.
By selecting lighting fixtures based on their actual application. In doing so, we consider ambient temperature, corrosion, voltage, vibrations, mounting position, burning hours, optics, maintenance access, and electrical configuration.
An IP rating indicates how well a fixture is protected against dust and water. For example, IP67, IP68, or IP69K. The correct IP class depends on the application, cleaning, moisture load, and mounting position.
Not always. IP69K is relevant for heavy cleaning, high-pressure washing, or environments with high water exposure. For other applications, IP67 or IP68 may be sufficient. The right choice depends on the actual conditions.
An IK rating indicates the impact resistance of a luminaire. This is important in locations where lighting may be struck by tools, materials, machinery, vehicles, or mechanical impact.
IK10 is especially relevant for heavy mechanical loads, such as on cranes, mobile machinery, work sites, docks, production lines, and locations where fixtures are vulnerable to impact.
IP and IK are important classifications, but they don't tell the whole story about thermal design, corrosion protection, electronics, light maintenance, driver quality, or suitability for the application. A luminaire must be assessed as a whole.
Warranty indicates under what conditions a product is supported. Suitability for an application goes further. This involves assessing whether the fixture technically fits the environment in which it is used.
The warranty applies within the technical specifications and conditions of the product. When a fixture is used outside its design limits, for example due to excessive temperature, incorrect voltage, extreme corrosion, or improper installation, it may affect the warranty.
Not every product family has the same design, application, choice of materials, or technical construction. That is why the warranty differs between, for example, DCbright, DarkLicht, and stainless steel enclosures.
Maintenance can affect the lifespan of luminaires, especially in corrosive, dirty, or hard-to-reach environments. Regular inspection helps to identify problems such as contamination, coating damage, cable damage, or mechanical stress in a timely manner.
Yes. For critical applications, we assess in advance whether a fixture fits within the technical limitations of the product and the site conditions.
Heat accelerates the aging of LEDs, drivers, seals, and electronic components. When heat is not adequately dissipated, the light output decreases more rapidly, and the risk of malfunction or failure increases.
A high-temperature fixture is needed when the ambient temperature, radiant heat, or mounting position falls outside the range of standard LED lighting. This occurs, for example, in ovens, the steel industry, glass production, mineral wool production, and hot process environments.
Drivers are sensitive to heat. In high-temperature applications, it may be wise to place the driver outside the hot zone. This reduces the thermal load on the electronics and simplifies maintenance.
No. Radiant heat, air circulation, mounting distance, fire duration, contamination, and mounting position are also important. A fixture may appear suitable based on ambient temperature, but still be overloaded by radiant heat or have insufficient ventilation.
Standard LED lighting is usually designed for normal ambient temperatures. At high temperatures, LEDs can degrade faster, drivers can become overloaded, seals can age, and components can operate outside their safe temperature range.
In industrial installations, voltage spikes, electrical pollution, incorrect connections, or long cable runs can cause damage to drivers, LED modules, or printed circuit boards. Electronic protection helps to limit this risk.
Overvoltage protection protects the fixture from excessively high voltages. This helps prevent damage to electronics when the voltage temporarily goes outside the normal range.
Transient protection helps protect sensitive electronics from short voltage spikes and electrostatic discharges. This is especially relevant in industrial and mobile applications.
In DC applications, incorrect connections can cause damage. Active polarity protection helps prevent electronics from failing when plus and minus are accidentally swapped.
No. Safeguards increase operational reliability, but do not replace a well-designed installation. Cable routing, power supplies, grounding, surge protection, and mounting still need to be carried out correctly.
We consider the application, environment, mounting position, lighting requirements, voltage, temperature, corrosion, vibration, maintenance access, and any regulatory requirements. Based on this, we recommend a suitable product family and version.
In heavy industrial environments, the greatest costs are often not in the fixture itself, but in installation, maintenance, downtime, aerial lift rental, planning, and standstill. A cheaper fixture can therefore turn out to be more expensive in the long run.
More power or more lumens doesn't automatically mean better light. Optics, mounting angle, glare, light distribution, uniformity, and light pollution are at least as important. An efficient lighting solution begins with the correct distribution of light.
Engineering is needed when standard product selection does not provide sufficient certainty. For example, with high masts, terminal areas, cranes, offshore installations, high temperatures, corrosive environments, or projects with requirements regarding light pollution, standards, or maintainability.
Yes. For project-based applications, we look at the complete configuration: luminaire selection, optics, mounting angle, mounting height, driver location, wiring, maintenance access, and electrical boundary conditions.
Not every industrial application requires the same luminaire quality. A harbor, crane, furnace environment, offshore installation, terminal area, or production line places different demands on lighting.
We assess your application based on temperature, corrosion, vibration, stress, mounting position, and maintenance access. Based on this, we recommend the correct fixture design, material choice, and electrical configuration.
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