How to solve the heat dissipation problem of J-box downlight

One of the technical difficulties of LED lighting is heat dissipation. The poor heat dissipation results in LED driving power and electrolytic capacitor becoming the short board for further development of LED lighting.

Only when the heat is exported as soon as possible can the cavity temperature in LED lamps be effectively reduced, can the power be protected from working in a prolonged high temperature environment, and can the LED light source avoid premature aging due to long-term high temperature work.

Just because the LED light source does not have infrared ray and ultraviolet ray, so the LED light source does not have radiation heat dissipation function, the heat dissipation path of the LED lighting lamp can only be exported through the radiator which is closely combined with the LED lamp bead board.The radiator must have the function of heat conduction, heat convection and heat radiation.

Any radiator, besides want to be able to carry heat quickly from heat source to radiator surface, the mainest still should rely on convection and radiation to send heat out into the air.Heat conduction only solves the way of heat transfer, and heat convection is the main function of radiator. Heat dissipation performance is mainly determined by the ability of heat dissipation area, shape and natural convection intensity.Generally speaking, if the distance from the heat source to the surface of the radiator is less than 5mm, the heat can be exported as long as the thermal conductivity of the material is greater than 5, and the rest of heat dissipation must be dominated by heat convection.

Similarly, the lamps designed by OKT should also consider the safety of heat dissipation, For example J-box downlight,to minimize the installation costs of customers and suit for different height of ceilings,the heat sink and J-box was integrated as one engine.When testing the sample, R&D engineer found the engine was too hot. As we all know, high temperature is the Achilles' heel to electric applicances .How to solve this problem .

 R&D engineer  did some experiment s and tried again and again. In those days, R&D engineer used to work overtime until late night. Them changed the materials and added some components. At last. the J-box downlight was released.

What is  it about J-box downlights that attract the cunstomers?

>First, one engine can be compatibled with different trims (4".6"and 8"),which is flexible for its sales and reduce your inventory risk. You also just need to prepare a certain number of engines for maintenance and save storage space and reduce your tied-up capital

>Second, you can greatly save shipping cost by their innovative separable design. A container can be filled with as about 2 times quantity of lights as before! It means you can reduce about half or even more of shipping cost!

>Third, no cans! They can be installed with their butterfly clips! So you can save the cost of housing fixtures for new construction

OKT Lighting has been working with led commercial lighting for 10 years, our product s cover led downlight, led pendant light fixtures,led emergency driver, led troffer,led panel light, led linear light ..... our professional R&D team will continue to provide after-sales support service, 5 years limited warranty helps reduce operating cost of maintenance.

Besiges , you don't have to worry about your electrician not professional enough to install our products, specific installation instruction and videos will be provided for your reference.

How to solve the heat dissipation problem of J-box downlight

One of the technical difficulties of LED lighting is heat dissipation. The poor heat dissipation results in LED driving power and electrolytic capacitor becoming the short board for further development of LED lighting.

Only when the heat is exported as soon as possible can the cavity temperature in LED lamps be effectively reduced, can the power be protected from working in a prolonged high temperature environment, and can the LED light source avoid premature aging due to long-term high temperature work.

Just because the LED light source does not have infrared ray and ultraviolet ray, so the LED light source does not have radiation heat dissipation function, the heat dissipation path of the LED lighting lamp can only be exported through the radiator which is closely combined with the LED lamp bead board.The radiator must have the function of heat conduction, heat convection and heat radiation.

Any radiator, besides want to be able to carry heat quickly from heat source to radiator surface, the mainest still should rely on convection and radiation to send heat out into the air.Heat conduction only solves the way of heat transfer, and heat convection is the main function of radiator. Heat dissipation performance is mainly determined by the ability of heat dissipation area, shape and natural convection intensity.Generally speaking, if the distance from the heat source to the surface of the radiator is less than 5mm, the heat can be exported as long as the thermal conductivity of the material is greater than 5, and the rest of heat dissipation must be dominated by heat convection.

Similarly, the lamps designed by OKT should also consider the safety of heat dissipation, For example J-box downlight,to minimize the installation costs of customers and suit for different height of ceilings,the heat sink and J-box was integrated as one engine.When testing the sample, R&D engineer found the engine was too hot. As we all know, high temperature is the Achilles' heel to electric applicances .How to solve this problem .

 R&D engineer  did some experiment s and tried again and again. In those days, R&D engineer used to work overtime until late night. Them changed the materials and added some components. At last. the J-box downlight was released.

What is  it about J-box downlights that attract the cunstomers?

>First, one engine can be compatibled with different trims (4".6"and 8"),which is flexible for its sales and reduce your inventory risk. You also just need to prepare a certain number of engines for maintenance and save storage space and reduce your tied-up capital

>Second, you can greatly save shipping cost by their innovative separable design. A container can be filled with as about 2 times quantity of lights as before! It means you can reduce about half or even more of shipping cost!

>Third, no cans! They can be installed with their butterfly clips! So you can save the cost of housing fixtures for new construction

OKT Lighting has been working with led commercial lighting for 10 years, our product s cover led downlight,led linear light, led emergency driver, led troffer,led panel light, led pendant light fixtures..... our professional R&D team will continue to provide after-sales support service, 5 years limited warranty helps reduce operating cost of maintenance.

Besiges , you don't have to worry about your electrician not professional enough to install our products, specific installation instruction and videos will be provided for your reference.

Protective materials are associated with LED life

As the LED and solid-state lighting industries flourish, product developers are applying technology to harsh environments.Now, let's discuss the need to protect LED and circuit components in harsh environments such as Marine applications.Coating and other protective technologies can extend the service life and performance of solid-state lighting systems.

With the rapid development of LED market, correct product selection is the key to ensuring LED performance and service life.Use leds in a variety of environments and describe how to take proper care in those environments.The development process must ensure reliability, as well as good optical performance of solid-state lighting systems.

LED applications are increasingly diversified;Design requirements, location, or product functionality can demonstrate that the challenges facing LED designers are changing.Like most electronic devices, leds perform well until external influences start to degrade their performance.These effects can include electrostatic attraction to dust, moisture or corrosive environments, chemical or gas pollution, and many other possibilities.Therefore, the end-use environment needs to be carefully considered to ensure that the right product can be selected.Then choosing the right emergency power source is an important issue

OKT emergency led driver suitabled for wet location for applying to outdoor application，Test switch and charge indicator,upgrade to single-piece of test swith and charge indicator, it will has self -test in the 3rd second ofter all wiring done. The indicator light will be on if the driver works, otherwise it will flash or be off.

OKT launched the first generation emergency led driver with UL component recognized in 2014, and now we offers fully listed, field-installable emergency LED drivers. Models are available for external and internal driver fixtures. our EM-L series low voltage emergency backup for external drivers’ fixtures, like led commercial downlights with external drivers, ceiling lights, led panels etc. On the country, the EM-H series high voltage emergency backup for internal drivers’ fixtures, such as led bulbs, led tubs, integrate led commercial downlights etc. 

The innovative one is our latest new design EM-S series led emergency driver, split design with battery pack and led driver, emergency solution in a narrow profile housing for installation of luminaires, more convenient and available for most luminaires.

The emergency led drivers allows the same LED luminaire to be used for normal and emergency operation and works in conjunction with an AC LED driver that convert new or existing LED fixtures into emergency lighting. All our types available in a variety of wattage, providing solutions for 8, 16, and 25 watts applications. 90 Minutes operation for battery backup,Charging time<24~36 hours.

We have more increasingly energy-efficient, cost-effective and aesthetically pleasing product, like led panel light, led downlight, led linear pendant,led troffer....Welcome to visit our web and contact us www.oktlighting.com

Global LED lighting certification you know what

In the current situation of global energy shortage, energy conservation is an important issue we face.LED is known as the new generation of green light source. Its advantages of energy saving, environmental protection and long life make LED lighting industry become the green industry that countries focus on.In view of the increasingly mature and rapid development of LED lighting technology, in order to regulate the emerging market of LED lighting, some important LED regional markets around the world have launched relevant technical regulations or standards, which have put forward certification requirements for the application of LED lighting certification.

3C  authentication

The 3C certification is called "compulsory product certification system". It is a product qualification assessment system implemented by the Chinese government in accordance with laws and regulations to protect consumers' personal safety and national security, strengthen product quality management.

3C authentication mainly by trying to "unified directory, unified standards, technical regulations and conformity assessment procedures, unified authentication marks, unified fee standards", such as a package solution, completely solve the Chinese for a long time in the product certification system of conflicting policies from different departments, repeat review, repeated charge and authentication behavior and law enforcement behavior both problems, consistent with the international rules and establish the technical regulations, standards and conformity assessment procedures, can promote trade facilitation and liberalization.

ISO9000 certification

ISO9000 quality system certification bodies are all approved by the national accreditation bodies, the enterprise's quality system audit is very strict.Internally, quality management can be carried out in accordance with the internationally standardized quality system that has been strictly audited to truly meet the requirements of legalization and scientization, greatly improving work efficiency and product qualification rate, and rapidly improving the economic and social benefits of enterprises.For external, when customers know that the supplier in accordance with international standards for management, got the ISO9000 quality system certification, and has the strict audit and regular supervision, certification bodies can be sure that the enterprise is able to stable production of qualified products and excellent product trustworthy enterprise, thereby safely supply and sales contract with the enterprise, expand the market share of the firm.

UL certification

UL is shorthand for the underwriter's trial in the United States.UL safety testing is the most authoritative institute in the United States and the world's largest private institution engaged in safety testing and certification.It is an independent, for-profit professional body that conducts experiments for public safety.It USES scientific testing methods to study and determine whether various materials, devices, products, equipment, buildings and so on are harmful to life and property and the degree of harm;To determine, compile and publish relevant standards and information to reduce and prevent loss of life and property, and to conduct fact-finding business.

The FCC certification

Established by COMMUNICATIONACT in 1934, the federal communications commission is an independent agency of the U.S. government directly responsible to congress.The FCC coordinates domestic and international communications by controlling radio broadcasts, television, telecommunications, satellites and cables.Many radio applications, communications and digital products to enter the U.S. market require FCC approval.The FCC investigates and studies the stages of product safety to find the best way to solve the problem, and the FCC also includes radio devices, aircraft testing, and so on.

CE certification

CE certification is limited to the basic safety requirements of products that do not endanger the safety of humans, animals and goods, rather than the general quality requirements. The coordination instructions only specify the main requirements, and the general instruction requirements are the standard tasks.Therefore, the accurate meaning is: CE mark is a safety and qualified mark rather than a quality qualified mark.Is the "main requirement" that forms the core of the European directive.

The "" CE" "sign is a safety certification mark that is seen as a passport for the manufacturer to open and enter the European market.In the eu market, the "CE" sign is a mandatory certification mark. For products produced by enterprises within the eu or by other countries, to circulate freely in the eu market, the "CE" sign must be affixed.

MET listed

The MET mark applies to the US and Canadian markets: the MET mark with c-us indicates that the product has been tested and meets the applicable standards of the US and Canada, and can enter both markets at the same time.

CB certification

CB system (IEC system for qualified testing and certification of electrical products) is an international system operated by IECEE. IECEE certification bodies test the safety performance of electrical products on the basis of IEC standards. The test results of CB test reports and CB test certificates are mutually recognized in IECEE member countries.The aim is to reduce international trade barriers arising from the need to meet certification or approval criteria in different countries.

CSA certification

CSA is the abbreviation of Canadian standards association. Founded in 1919, CSA is the first non-profit organization in Canada dedicated to the development of industrial standards.Electronics, appliances and other products sold in the north American market require security certification.At present, CSA is the largest security certification body in Canada and one of the most famous security certification bodies in the world.It can provide safety certification for all types of products including machinery, building materials, electrical appliances, computer equipment, office equipment, environmental protection, medical and fire safety, sports and entertainment.

GS certification

GS means security has been certified, and it means German security.GS certification is a voluntary certification based on the German product safety law (GPGS) and tested in accordance with the European Union's uniform standard EN or German industrial standard DIN. It is a recognized German safety certification mark in the European market.

VDE certification

VDE testing and certification institute (VDE), located in Offenbach, Germany, is a research institute affiliated to the German association of electrical engineers, founded in 1920.As a neutral and independent institution, VDE's laboratory conducts the inspection and certification of electrical products in accordance with the German VDE national standard or European EN standard, or IEC international electrical commission standard, in accordance with the application.In many countries, VDE certification marks are even more well-known than domestic certification marks, especially recognized and valued by importers and exporters.

Since 2008, OKT have been dedicated to design and manufacture the most innovative and easy-to-use commercial led lighting fixtures, having the most experienced and knowledgeable sales and engineers teams.

Its main products include led linear light, led pendant lights, led panel light, led flat panel light, led troffer, led downlights and emergency led driver, all of which have achieved certifications such as UL, ETL, Energy Star, DLC, TITLE 24, TUV, CSA, SASO and FCC, and come with a minimum five-year warranty.

Reflective cup & lens

As is known to all, reflective glass and lens belong to secondary optics, secondary light distribution effect is light, they can say is the core of the luminous efficiency of lamps and lanterns, without the use of this core, the market of lamps and lanterns is about to go back to the original stage, is full of sunlight, since it is applied, so let's start to understand the difference between the reflective glass and lens.

Reflective cup

Do should know the original LED lamp light Angle is 120 ° or so, in order to realize the use of light to achieve the effect of demand, lamps and lanterns of reflector are used to control the light distance, area, light effect, the reflector is usually in the form of cup, and for this in the form of reflector industry are collectively referred to as reflective cup.

lens

LED lens is divided into primary lens and secondary lens. The lens we commonly refer to is the default secondary lens, that is, outside the LED light source, closely combined with it.According to different requirements, different lenses can be used to achieve the desired optical effect.

Nowadays, secondary lenses in the market are generally full reflection design (TIR). The design of the lens is to penetrate and concentrate light on the front, while the conical surface can collect all the light from the side and reflect it off. When the two lights are overlapped, a perfect spot effect can be obtained.The efficiency of TIR lens generally over 90%, the general beam Angle < 60 °, can be applied to the lamps and lanterns of small Angle.

At this point, I'm sure some friends will ask, when to use the lens, when to use the reflective cup?

Reflective cup has a pair of bright spot, it can provide an excessive, make the light more comfortable, but also is not cookie-cutter so, let everybody see a group of pictures first.

The effect of the lens is relatively perfect. Generally, there is no auxiliary light spot and the light shape is more beautiful.And the effect that reflects a cup comes out, contain pair of bright spot, the light shape has lamination effect.The friend that believes to be aesthetic normal can feel the effect of above picture more suit to show the artistic sex that hangs a picture, and the picture that has pair of bright spot is a bit unsatisfactory, can say even look very awkward, but does this represent to have the reflective cup of pair of bright spot to have no use?That's not it.

In a scene, still is reflective cup, is still a light, however when vice flare effect fully highlight, it's beautiful sex compared with before, there is not a class, also this is also a question of putting the cart before the horse, first for developers, where do you want to understand your needs, in what condition, where is the need to achieve what kind of photosynthetic efficiency.Then there is the further implementation process and the implementation plan.

Again, what you need to achieve is what you want and what you think is the best optical component, and they're not good or bad.

Tube lamp (wall lamp) - recommended light fitting for reflective cup and lens (without optical requirement)

Like canister light of lamps and lanterns, is usually installed on the wall of corridor, also is one of the lamps and lanterns of people eyes nearest, if the light of lamps and lanterns is strong, it's easy to not adapt to psychological and physical, so the tube light class design, there is no special request, for the use of reflective glass effect is relatively general lens will be a little bit better, after all have a spot of excessive, won't let a person walking in the corridor will look for some point light is strong too much, lead to eye discomfort.

OKT light focus on led commercial led light manufacture,which experienced the first generation (COB) and the second generation (CES).Until now the split downlight . there are installation and application examples in various places in the American market.New York subway station, International Convention Centre In San Diego.....OKT split downlight, the third generation of commercial downlight, has received customers’ high praise since its lauch. What advantages does it have?

Low Freight Costs: The innovative separable design of engine and trim provides benefits to you. The right can be disassembled into separate parts and be packed individually, so you can save freight charges by rational use of the transport space.

Low Storage Risk: One engine can be compatible with different trims(4”,6”and8”),which is flexible for its sales and reduce your inventory risk. Moreover, you don’t have to store the whole

Light for after-sales services. Considering that the most easy damaged part is engine, you just need to prepare a certain number of engines for maintenance, and you can save storage space and reduce your tied-up capital.

Competitive features: This Led commercial downlight has a pleasant appearance and can decorate commercial places well. It is also a low-energy cost light and rebate light. This led downlight, Certified by ES, is very suitable for a wide range of use in commercial places because of its low input power 9w-20w.

In fact, OKT light focus on led commercial led light manufacture since 2008, We

have more increasing energy-efficient, cost-effective and aesthetically pleasing product,like led linear pendant lighting,led flat panel light,led troffer,surface mount led light,emergency led driver

And OKT Lighting is customer demand-oriented, and continues developing more and better new products, We provide wholehearted services, and look forward to your Valuable opinions.

  

What is a UGR?What are the common solutions?

What is UGR?
Glare - a glare that reduces visual efficiency and visibility and is often accompanied by discomfort.It is mainly due to the high brightness source in the field of vision stray light into the eye, the scattering in the eye and the retinal image clarity and contrast decreased.Incapacitated glare is measured by the ratio of the visibility of a job under a given lighting facility to its visibility under reference lighting conditions, called the incapacitated glare factor (DGF).
The diseomfort glare, also known as "psychological glare," leads to visual discomfort but does not cause reduced visibility.
These two kinds of Glare are known as UGR(Unified Glare Rating), that is, uniform Glare value, which is one of the main contents of illumination quality evaluation in lighting design.These two kinds of glare can appear at the same time or in a single form. The same UGR is not only a visual problem, but also a problem in design and application. How to reduce UGR to within the comfort value as much as possible?
 1. Design first
Generally, lamps are composed of shell, power supply, light source, lens or glass. In the early design, there are many methods to control UGR value, such as controlling the brightness of light source, or making anti-glare design on lens and glass, as shown below:

2. Design problems
Within the industry, under the condition that general lamps and lanterns meet the following conditions, it is unanimously agreed that UGR does not exist:
Free VCP (visual comfort probability) greater than or equal to 70;
(2) when in indoor vertically or horizontally to see, with the vertical lamps and lanterns into 55 °, 45 °, 65 °, 75 ° and 85 ° Angle of maximum brightness of lamps and lanterns (6.5 cm squared the brightest) and the ratio of the average brightness of lamps and lanterns or less 5:1;
The maximum brightness of luminaires and vertical lines shall not exceed the industry regulations when viewed vertically or horizontally.

3. Late-stage control of UGR
Avoid installing the lamp in the interference area;
Low gloss surface decorative materials are used in the creaming;
Limit the luminaire brightness.
Some of the lamps designed by OKT are UGR<5, such as split downlight, Low Glare LED Linear Pendant Light. They are respectively used for shopping mall lighting and indoor lighting, giving people a very comfortable experience.Details can be found on the website：www.oktlighting.com.