COB VS SMD: Which Led is Better & Brighter
Table of Contents
What is a COB Led?
The COB chips are carefully arranged on the PCB either in a parallel formation or in a specific series depending on the PCB.
The different materials used on the substrate help the LEDs work better. For instance, the ceramic material features a thermal conductive performance that ensures the LED lights work efficiently while maintaining the right temperature.
What is SMD Led?
This is what is referred to as SMD. It is mainly found in filament lights, bulbs, and the notification light on phones. This type of led varies greatly given the fact that it can work with only two contacts.
It, however, can accommodate three diodes with each diode, there has to feature a cathode and anode on each end. It means that it will work with up to 6 contacts. The best thing about these diodes is that they can be in different colors.
This enables the technology to fit in more electronics utilizing a very small space. This technology also facilitates the automated assembly of PCB and also the application of soldering.
People have been more inclined toward embracing this technology because it increases device reliability, performance, and leads to great cost savings. It has also affected the design aspects in the development of electronics and electric circuits.
The Difference: COB Led vs SMD Led
Knowing the specific things that differentiate these two led technology is important. It will help you decide which option works best for you. The differences include:
Quality of Light Produced
When it comes to SMD, the light produced features a glare and is best used as a point light. This is mainly because the light is produced as a result of the attachment of multiple light sources.
On the other hand, COB will produce an even and glare-free light. It provides a uniform and easy to adjust light beam. This is mainly because it features a large angle beam that makes it a better light source. Given its features, it is best described as surface light.
When it comes to production efficiency, these two led technologies work at different levels. This is mainly because they are made with different features.
For SMD, the efficiency is significantly lower which makes it a better choice when you’re not too concerned about this.
COB however features a higher production efficiency compared to SMD making it a great option for people with specific lighting performance requirements.
Cost of Manufacturing and Purchasing
How much it will cost you to get devices made using these different technologies will vary. They highly depend on the manufacturing cost which is different for both.
The manufacturing cost attached to SMD is higher compared to its counterpart. For instance, when it comes to comparing the labor and manufacturing process to the material cost, SMD is higher.
This is because, for SMD, the cost accounts for 15% of the material cost. On the other hand, for COB, labor and manufacturing cost accounts for 10% of the material cost. This goes to show that COB saves you about 5% on manufacturing.
These glues are used to fix the chip onto the pad found in the lamp holder. It is then welded to provide a better and more secure hold. It then undergoes a performance test to ensure that it is in good working condition.
After the test, it is coated with epoxy resin to keep it safe and transported to another section for assembly to screens. COB features an led chip that is directly fixed to the PCB using the two types of glue used for SMD. After performance tests, the chip is then encapsulated in epoxy.
Color and Temperature Choices
It also works when you want to change the color temperature. However, when it comes to the COB, the flexibility to change the colors, and their temperature is not made possible.
The COB led is made to stick to one light color and temperature. This is also contributed highly by the applications related to COB.
COB on the other hand works great when applied in the security and industrial sectors. This is mainly due to the brightness and beam they provide.
Seeing something from a far distance with the help of this light is better. With the different applications, you’ll be in a better position to see what works best for you. These LEDs can also be used in many other industries if need be.
Which Led is Better and Brighter?
Determining which led is better will require you to look at three determining factors. They include:
In general, when working with Led lights, you can be assured of great energy efficiency. This is why they are gaining popularity and becoming the most preferred sources of light compared to filament bulbs.
Compared to other light sources, led lights are more cost-effective. They are made to last longer and use less energy compared to others.
You’ll have to make an initial investment that may be a bit higher but will be worth every coin. When it comes to manufacturing costs, SMD will take up more money compared to COB LEDs.
When it comes to SMD led, a 50 to 100 lumen per watt measure is applied. This means that there’s less energy used even with a high level of the lumen.
COB on the other hand works with a higher lumen compared to that of SMD. The lowest measure that is applied is 80 lumen per watt. This gives COB powered lights brighter and better.
If you’ve found yourself figuring out what COB and SMD are all about, then we hope that this article has answered all your questions. These options are both a great investment and work the same to ensure that the lights are efficient.
When it comes to which one is better, that is a personal preference that is dependent on the application in mind. However, COB does stand out especially when it comes to its features and the amount of brightness it exudes.
Determining your desired light brightness and having a good idea of where you need it will help you choose better. Take your time and experiment with both if you need to.