How to Compare LED Lights When Buying in Bulk
With the increasing popularity of LED lighting, many people are confused when it comes to choosing an LED lamp.
First, we must understand that the quality and price of the lamps are determined by four components: LED chip, LED controller, heat sink and printed circuit board (PCB).
1. LED chip
One of the two most important components of an LED lamp, the chips come in a wide range of performance standards and, consequently, the price will vary depending on the brand of chip used by the manufacturer. While high-performance lamps use CREE or OSRAM; the price can be a bit rich for most consumers. Instead, you may want to opt for a lamp with a Bridgelux, Samsung or Epistar chip, to name just three affordable quality chips. The use of a good quality chip results in a beautiful color (as measured by its color temperature and color rendering index) - CRI), as well as a high light efficiency (a measure of how well a light source produces visible light).
Chip lengths are measured in millimeters (thousand) and one millimeter equals one-thousandth of an inch. In general, the bigger the chip, the better the performance. As manufacturers' specifications and claims tend to be exaggerated, it is prudent to compare one lamp with another by determining which components are used in the manufacture of the products in question.
Many manufacturers use SMD LED chips in interior lightings, such as SMD 2835 in LED tubes and SMD 3014 in LED panel lights. These low power LEDs produce fewer lumens, resulting in a light that is easy for the human eye. Simply put, a lumen is a measure of the amount of light emitted per second. High power LEDs are used in industrial lamps due to their small size and the result is a concentrated light that does an excellent job. Many high-rise LED lamps are equipped with 45x45 thousand chips and are used and packaged with an on-board chip light source (COB).
For your information, the numbers 2835, 3014, 3528, 5050, 5630 are the names of the packaging process models. Another process with a very promising future is the COB light source mentioned above, where the chips are mounted directly on the printed circuit boards (PCBs) instead of the surface mount devices (SMD). As these light sources have a variety of features, it is recommended that you take a few minutes to familiarize yourself with them to better meet your needs.
As you have seen, the LED packaging is closely related to its performance and manages a number of functions, including heat dissipation, light distribution, and color temperature variation and chip IRC. Phosphorus was added to change the original blue light that initially produces white.
2. LED Controller
The second key component is the power system, commonly known as the controller. It is the limiting factor in the longevity of the LED lamp, although there is an urban myth that claims that the life of a lamp is up to 30 years; The driver can only last from 1000 to 2000 hours. Ignore the manufacturer's claims of 50,000 hours of LED lamp life.
A reputable driver, such as Meanwell, can be expected to have 15,000 hours of life. However, the cost would be 80% higher than the average driver manufactured in China. Most manufacturers use their own controller. In these cases, it is advisable to ask if the capacitor comes from an accredited manufacturer.
Another indication of life is the guarantee offered.
3. Heat sink
LED lightings are temperature sensitive, which makes the heat sink a major concern. Most products use an aluminum alloy heat sink for their cost-effectiveness and, although the specifications really do not tell us much, there are three elements that we should consider.
A. Thermal conductivity: 6063 die-cast aluminum is the most widely used material. The best have anodized coating. B. Quantity and size of fins: the bigger and bigger, the better.
First, we must understand that the quality and price of the lamps are determined by four components: LED chip, LED controller, heat sink and printed circuit board (PCB).
1. LED chip
One of the two most important components of an LED lamp, the chips come in a wide range of performance standards and, consequently, the price will vary depending on the brand of chip used by the manufacturer. While high-performance lamps use CREE or OSRAM; the price can be a bit rich for most consumers. Instead, you may want to opt for a lamp with a Bridgelux, Samsung or Epistar chip, to name just three affordable quality chips. The use of a good quality chip results in a beautiful color (as measured by its color temperature and color rendering index) - CRI), as well as a high light efficiency (a measure of how well a light source produces visible light).
Chip lengths are measured in millimeters (thousand) and one millimeter equals one-thousandth of an inch. In general, the bigger the chip, the better the performance. As manufacturers' specifications and claims tend to be exaggerated, it is prudent to compare one lamp with another by determining which components are used in the manufacture of the products in question.
Many manufacturers use SMD LED chips in interior lightings, such as SMD 2835 in LED tubes and SMD 3014 in LED panel lights. These low power LEDs produce fewer lumens, resulting in a light that is easy for the human eye. Simply put, a lumen is a measure of the amount of light emitted per second. High power LEDs are used in industrial lamps due to their small size and the result is a concentrated light that does an excellent job. Many high-rise LED lamps are equipped with 45x45 thousand chips and are used and packaged with an on-board chip light source (COB).
For your information, the numbers 2835, 3014, 3528, 5050, 5630 are the names of the packaging process models. Another process with a very promising future is the COB light source mentioned above, where the chips are mounted directly on the printed circuit boards (PCBs) instead of the surface mount devices (SMD). As these light sources have a variety of features, it is recommended that you take a few minutes to familiarize yourself with them to better meet your needs.
As you have seen, the LED packaging is closely related to its performance and manages a number of functions, including heat dissipation, light distribution, and color temperature variation and chip IRC. Phosphorus was added to change the original blue light that initially produces white.
2. LED Controller
The second key component is the power system, commonly known as the controller. It is the limiting factor in the longevity of the LED lamp, although there is an urban myth that claims that the life of a lamp is up to 30 years; The driver can only last from 1000 to 2000 hours. Ignore the manufacturer's claims of 50,000 hours of LED lamp life.
A reputable driver, such as Meanwell, can be expected to have 15,000 hours of life. However, the cost would be 80% higher than the average driver manufactured in China. Most manufacturers use their own controller. In these cases, it is advisable to ask if the capacitor comes from an accredited manufacturer.
Another indication of life is the guarantee offered.
3. Heat sink
LED lightings are temperature sensitive, which makes the heat sink a major concern. Most products use an aluminum alloy heat sink for their cost-effectiveness and, although the specifications really do not tell us much, there are three elements that we should consider.
A. Thermal conductivity: 6063 die-cast aluminum is the most widely used material. The best have anodized coating. B. Quantity and size of fins: the bigger and bigger, the better.
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