SMD, COB, and Filament LEDs Explained

Filament LEDsLED technology is making serious inroads into the lighting industry. Plus, several advancements have been witnessed since the first LEDs were introduced into the market. In particular, the invention of SMD and COBs have revolutionized the LED lighting industry. In this article, you are going to learn about SMD, COB, and how they differ from Filament LEDs.

COB LEDs: The Basics

chip on board (COB) LEDsAlso referred to as Chip-on-Board, COB referred to a process where a bare LED chip is mounted directly on a substrate to produce Light Emitting Diode arrays. The substrate can either be silicon carbide or even sapphire. COB LEDs come with numerous advantages. In particular, this technology is all about allowing you to enjoy improved lumen density.

Here is an example:

You are having a COB LED technology. You then decide to use it on a 10mm by 10mm square array. The results will be 38 times better than the DIP LED technology. Still more, it will be 8.5 times the SMD technology. In a nutshell, it will result in greater uniformity as well as higher intensity.

Still more, COB LED technology allows you to reduce energy consumption as well as footprint. However, this can only happen when the light output is kept constant. For instance, using a 500 lumen COB Light Emitting Diode Fixture is several times smaller and can consume considerably less amount lumen than its 500 lumens and DIP LED Array.


It’s important to note that COB LED technology is based on one circuit and two contacts. These fixtures are based on one chip. The number of diodes doesn’t affect the number of contacts or circuits. This means that the circuit is simple—which makes the LED device simple. In a nutshell, simplicity is what makes the COB LED technology highly attractive.


LED CBO technology is based on a small-sized chip. This makes the design compact and easy to handle.

High Intensity

LED COB technology produces high-intensity lighting.

Higher Thermal Performance 

LED COBs technology comes with enhanced thermal performance—which improves the fixture’s life, stability, as well as reliability.

Running COB LEDs On Battery Power

High-quality lumen output, also known as brightness and runtime length, are key things that arise when designing battery-powered systems.  Normally, if you need more high-quality brightness, you should go for shorter runtime. However, you must use the same-sized battery. However, COB LED technology has changed the lighting landscape. In particular, low-wattage COB-based LEDs can be used to output high-quality bright light. This means that you can use a small lightweight lithium iron-based battery pack to power a COB LED system for longer periods of time. For instance, a 6-Watt COB LED light can run for around 14-15 hours with a small lightweight mobile power center.

The Bottom-Line

SMDWhat are SMDs and COBs? How do they differ from LEDs? Well, the above guide contains all things SMD and COB and how they differ from LEDs.

One thought on “SMD, COB, and Filament LEDs Explained”

  1. Thank you for sharing this, It really helps me to understand the difference between SMD, COB, AND FILAMENT.

Leave a Reply

Your email address will not be published. Required fields are marked *