How to Choose the Right Beam Angle for LED Lights

LM-80 Test: All You Need To Know

  • What is Lumen Maintenance ?

It is important to get know well of lumen first. As usually, we refer to the amount of light emitted by the LED light source per unit time as the luminous flux, unit: lumen, LM. The amount of light is for light source, description of size of the total amount of light emitted by the light source, equivalent to the luminous power, and greater the luminous flux of the light source, the more light is emitted. When a luminaire ignites under specified conditions, the ratio of the luminous flux at a particular time during the life of the lamp to that of the initial of the lamp, expressed as a percentage. The luminous flux will be decreasing as increasing ignition time, so the effective life is defined by the lumen maintenance rate. When the luminous flux maintenance rate is lower than 50%, it can be regarded as the lamp has reached the service life, but the national standard requires the lumen maintenance rate of 2000H to be not less than 78%, the advanced level in foreign countries requires not less than 90% on same situation; the standard of the US Energy Star is that the lumen maintenance rate is not less than 80% at 40% of rated life.

LED Initial luminous flux percentage in Billionaire Lighting

LED Initial luminous flux percentage in Billionaire Lighting

A noun refers to “light degradation”, corresponding to the lumen maintance, of which is inversely proportional each other. The light degradation of LED is mainly affected by the following two factors:

1. LED quality: LED chip in it is not good, and brightness is attenuation in a faster speed. There exsits defect craft during production, and the heat dissipation of the LED chip cannot be well derived from the PIN pin, resulting in an excessive temperature of the LED chip, which intensifies the chip attenuation.

2. Using surroundings: The LED is driven by a constant current, and some of the LEDs are driven by voltage, which will make the LED attenuate faster. Obviously, the lumen maintenance rate is the core factor for judging the advantages and disadvantages of LED light sources.

Lumen Maintenance Graph

Lumen Maintenance Graph

  • What is LM-80 ?

As is well -known, working under a standard current and condition, LED will keep a long worklife, 50000 hours even longer. During spending the entire life, the LED light output is slowly depreciation , the spectrum may shift, resulting in color and luminious efficacy failure. In order to better promote the standard development, testing and certification of LED lighting product and regulate the LED market flourish, IESNA and ANSI jointly issued the LM-80 certification and TM-21.

In generally, LM-80 is a test for LED packages, arrays, and maintance lumen and color of modules. The testing time need to reach 6000 hours according to standard of Energy Start and IESNA LM-80, which can allow to do LM-80 testing certificate and reports using LED package, array, module optics. This report is a world-recognized international certification for the performance of products with a world-recognized and credible method, an important criterion for the quality of LED light sources.

LM-80 life requirement diagram

LM-80 life requirement diagram

In the LM-80 report, testing is required at least one product, at the same current, at three different temperatures (55 ° C / 85 ° C / optional temperature). When the LED device is used in the finished product, it will test the temperature of its corresponding point and the driving current of the LED. Comparing the temperature and current conditions of the finished product with the temperature and current conditions in the report, if the conditions in the report are more stringent, the reported data can be adopted.

During the LM-80 test, the aging process needs to be separated from the test process. The aging process must strictly control the temperature of the Tc to 55 degrees, 85 degrees, or the temperature specified by the supplier. After aging to the specified test interval, return to the test environment for photometric testing. The LM-80 requires testing of luminous flux and color parameters, and has high requirements for environmental control, temperature control of Tc, and power supply equipment, also has detailed requirements for tracking and recording of samples and aging processes. It can be said that passing the LM-80 certification is the highest recognition of the product, and it also means that it has achieved international leadership in terms of lumen maintenance and life, and can meet the demanding needs of the high-end LED intelligent lighting market.

Billionaire Lighting LM-80 light attenuation curve of the LED chips at 85°C

Billionaire Lighting LM-80 light attenuation curve of the LED chips at 85°C

Billionaire Lighting LM-80 light attenuation curve of the LED chips at 115°C

Billionaire Lighting LM-80 light attenuation curve of the LED chips at 115°C

  • How to judge a qualified LM-80 report?

How to assess the lumen maintenance rate of LED products is an important parameter to determine the quality of products, and is also an important indicator to distinguish the quality of light sources. The importance of LM80 to LED products is self-evident. So, how to judge whether a LM-80 report is qualified or not? In this regard, There are several points that are worthy of attention: 1, The luminous attenuation percentage and attenuation curve of the test product. 2, The color drift of the test product, that is, the color difference between 6000 hours and 0 hours.

Billionaire Lighting LED chips color maintenance results by LM-80 test

Billionaire Lighting LED chips color maintenance results by LM-80 test

Secondly, it is also worth noting whether the LM-80 reports has authorization, whether it meets the standard of test requirements, whether the sample quantity meets the requirements of the finished product energy efficiency certification, whether the color difference meets the standard requirements, whether the percentage of attenuation and its estimated life can meet the requirements.

LED Panel Lights What Makes It the Best Choice for Ceiling Lamps Anywhere

LED Panel Lights: What Makes It the Best Choice for Ceiling Lamps Anywhere

Whether it’s an office, designer shop, salon or a designer boutique, you know the importance of lighting and how it can create magic. Lighting in your homes, offices etc adds the wow factor to your exterior as well as interior setting, and it even affects our emotional behaviour, our stress level and mood. Because of this affect, it is important to invest good on lights, and LED Panel Lights as Ceiling lights for your space is the best option.

Extensive Light Coverage

All office settings and retail stores usually need bright lighting for better viewing of files, or designs or products etc. Dim lighting in such spaces can be very unsuitable and troublesome as it makes the customer uncomfortable to look at a product in a dim light. For this purpose, LED Panel lights as ceiling lights are best for substantial light coverage over the space. These are perfect because of their neutrality, they are not too bright or glaring to hurt your eyes and are excellent for places like offices and retail stores. The best part about using LED Panel lights for ceiling lights is that they can instantly be turned out without any warming up, which is both great for energy saving as well as safety purposes.

Customize Your LED Panel Lights

LED Panel lights can be used as ceiling fixtures and the amazing thing about it is that you can customize it according to your choice. These are mainly designed to replace the traditional fluorescent flat panels that cost a lot of energy and electricity. You can use the LED Panel lights in grid ceilings or even hang from hooks. There is a wide range of options available to choose from in terms of colour temperatures; these are warm, white, yellow, natural white, and daylight colour as well. There is also a variety of different sizes you can choose the LED Panel lights from, e.g. 2×2 feet, 2×4 feet etc. This means you can choose the right suitable lights according to your space.

How are LED Panel lights and LED Ceiling Lights Similar?

There remains a common confusion among people about the difference between LED Panel lights and Ceiling Lights; mostly because of their appearance. But their applications and effects are actually very different. The common things among both are that LED as a light source is completely environmentally friendly, it helps in saving energy, as well as it helps you in saving money. These are usually used for indoor lighting but can be used for commercial use as well. Now the contrasting factor is that the LED Panel lights are available in standard shapes, whereas the ceiling fixtures are available in different shapes and sizes which makes it more convenient for the customers to choose from. But usually, the most commonly used lights are shaped round or square, which are a pretty decent option for LED lighting commercially, so it comes out as the best choice.

Contrasting Differences between LED Panel Lights & Fluorescent Tube Lamps

Contrasting Differences between LED Panel Lights & Fluorescent Tube Lamps

Both Light emitting diodes and fluorescent lights are providing different lighting options. Both have numerous numbers of different applications. Both of these have a great light spread range due to which these lights can be seen in warehouses, outdoor and general room lighting. Actually the buyers do not have the general understanding of differences between the two technologies which usually accepts the decisions. Definitely if you will not have the enough knowledge about these two you will take wrong decisions. Both fluorescent lighting system and LED panel lighting system are entirely using different type of technologies. We will give you a knowledgeable comparison between the two different technologies.

LEDs (Light Emitting Diodes)

This technology was firstly developed in 1962. It is using “light emitting diode” which is a semi-conductor. This material has dual characteristics of both electrically conductive and a insulative material. These LED lights can emit a broad spectrum of light colors. The broadness of the spectrum is directly proportional to the composition of material used in semi-conductor. LED lights are not emitting significant amount of heat.

Fluorescent Lamps

This technology was first experimented in 18th century. It is made up of mercury vapor and a phosphor coating on the inside. When electric current passes through the tube it instigates the mercury vapor which causing it to emit ultra-violet light. After the emission the phosphor coating in the fluorescent light will absorb the ultra violet light and it re-emit it in the form of visible lighting. These fluorescent lights are usually coming in long glass tubes. Due to the involvement of mercury in its production it is very much hazardous waste as it is difficult to dispose it off properly.

Major points of differentiation b/w LED Panel Lights and Fluorescent Lamps are following:

Efficiency

LED pan el lights are very much efficient in comparison with fluorescent lamps. Efficiency usually measures with the lumens per watt. The results show that fluorescent lamps are not showing good results.

Lifespan

Lifespan of LED panel lights have a larger lifespan in comparison with fluorescent lighting. The basic advantage of larger lifespan of LED lighting is due to the less emission of heat whereas the fluorescent lamps are using the technology which emits more heat which is not enabling them to have a larger working life.

Size

LED lights are usually much smaller than the traditional size of fluorescent lights. LED lights usually take smaller space and their installation is ease. LED panel lights can also be replaced whenever it is required where as fluorescent lamps are not giving the users this advantage.

Cost Reduction

Due to multiple comparative advantages LED panel lights are reducing your cost whereas you need to replace the fluorescent lamps frequently. At the time of purchasing probably LED lights will cost you more than fluorescent lights but in the long run LED panel lights will be more beneficial especially concerning the rising economical trends of the country.

Photo before the end of the activity

2019 Outdoor Teamwork Building Activity of Billionaire Lighting Co.,ltd

Hold annual outdoor activities to strengthen corporate culture

In order to improve team cohesion and combat effectiveness, promote communication and cooperation among various departments, enhance team friendship, and enrich employees’ spare time cultural life, Shenzhen Billionaire Lighting Co., ltd. held the theme expansion activity of “gather strength · dare to fight” in Shiyan tree farm on July 13. More than 200 employees of the company actively participated in this activity and enjoyed the fun brought by the collective activity after busy work, which added a generous color to the team building and corporate culture building of the company.

All colleagues moves into the Shiyan outdoor farm

All colleagues moves into the Shiyan outdoor farm

Through this outward bound, we learned through practice and changed through learning, fully understood the importance of “responsibility, communication and cooperation”, and effectively relaxed in the tense work.

Work together for achieving goal, learn more about the importance of teamwork

On the morning of 13th, all the staff set out in an orderly way, singing and laughing all the way to the green tree farm. Under the influence of Mr. Hu impassioned pep talk, the partners’ fighting spirit was instantly lit up, and enjoyed themselves in nature.

The vice-president Mr. Hu spoke on stage before the event

The vice-president Mr. Hu spoke on stage before the event

In the warm-up exercise before the official start of the activity, each partner kneaded the shoulder and slapped the back for the neighboring teammates. In the game activity and team test of listening to instructions, employees from different departments quickly integrated into each other. Here, the coach reminded us to forget about our careers and duties, let go of our mental burdens, got to know our teammates quickly, stimulated our potential, and increased our executive and working ability with greater team strength.

The warm-up exercise allowed colleagues from different departments to get together quickly

The warm-up exercise allowed colleagues from different departments to get together quickly

In the following activities, under the guidance of the coach, we were divided into several groups to participate in training programs such as “challenge 100 seconds”, “south-to-north water diversion” and “power circle”. Each elaborate expansion project aroused our strong interest and enthusiasm. In the process of expanding the experience, colleagues from different departments cooperate with each other in a tacit way and conquer projects that were once considered impossible to complete, fully realizing the importance of team trust, effective communication, empathy, reasonable organization and teamwork.

The fun "challenge 100 seconds" segment

The fun “challenge 100 seconds” segment

The activity link of "south-to-north water diversion" to test group cooperation

The activity link of “south-to-north water diversion” to test group cooperation

Inspiring "power circle" interpretation

Inspiring “power circle” interpretation

At noon, you wash rice, I gather wood; You catch the fish and I serve it. All the company members participated in the production of rural firewood rice, which became a beautiful farm scenery. From washing and cutting vegetables, burning fire, stir-frying, each link everyone was actively involved in the cooking, and cooked up a lot of delicious dishes. The partners were laughing and laughing, and there was a tacit cooperation between the groups. Everyone could find a suitable role in the kitchen, which could virtually shorten the distance between everyone and experience the fun brought by cooking.

Self-sufficiency, cook delicious farm meals

Self-sufficiency, cook delicious farm meals

After the lunch break, the “fun tug-of-war” competition in the afternoon pushed the hot atmosphere of the expansion to the climax. Every member of the team used all his strength and perseverance to win the final victory.

Amazing tug-of-war

Amazing tug-of-war

Cheerleaders cheered for their teammates and enjoy the joy of team victory. To boost morale, Mr. Hu awarded thousands of yuan in cash prizes to his team members after the expansion project ended.

Mr. Hu presented a cash prize to the group for outstanding performance

Mr. Hu presented a cash prize to the group for outstanding performance

Take the path of sustainable development, Billionaire Lighting always strive for the best

Never forget why you started, and your mission can be accomplished. Since its establishment, Shenzhen Billionaire Lighting Co., ltd. has been adhering to the sustainable development line of excellence, committed to the pursuit of the ultimate peak state, determined to make every product the best, and make our service the best. The purpose of this expansion is not only to let employees relax in their busy work, but also to make every colleague of the company become a value employee who focuses on the spirit of artisans, discover and break themselves through challenges and experiences, and contribute to the sustainable development of the enterprise and the efficient development of the lighting industry.

Photo before the end of the activity

Photo before the end of the activity

In the evening, we continued to return, marking the end of the expansion activities. The smiling face in the group photo left a good memory for the group’s expansion and drew a satisfactory full stop.