Jul. 08, 2024
LED lights come in a variety of types. Among them COB and SMD LED gain great popularity. And here comes the question, SMD VS COB LED, what are the differences?
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*SMD LED construction
SMD LED, which is short for Surface Mounted Device LED, is the most common LED in the market. The LED chip is a versatile electronic component that is permanently fused to a printed circuit board. It is applied to light bulbs and string lights, as well as your 's notification light.
SMD LED chips are available in a variety of sizes. For example, one of the SMD chips, the SMD LED is 5mm wide while the SMD has a width of 3.5mm. As you can see, SMD chips are compact, practically identical to the flat, square computer chip architecture.
*COB LED construction
What is LED COB? COB LED technology is a recent advancement in LED lighting that allows for more effective energy use. As for COB manufacturing, it has several diodes on the same surface as SMD chip does. However, the distinction between them is that COB LED has more diodes.
Typically, COB chips feature 9 or more diodes. No matter how many diodes, they have only one circuit and two contacts, resulting in a panel-like look of COB LED lights.
When SMD VS COB LED in brightness, it also distinguishes. The level of brightness highly depends on the lumen output by the involved chips. Generally speaking, compared to other light sources, LED lights are capable of illuminating with brighter light, a result of higher lumen. But among different types of LED, the lumen differs.
For example, COB LED lumen is 80 lumen per watt at least, while SMD applies 50 to 100 lumen per watt, while the lowest measure of COB is 80 lumen per watt. Therefore, lights with COB are brighter.
In general, working with LED light like COB light ensures great energy efficiency. This is why, in comparison to filament bulbs, they are gaining popularity and becoming the most favored light source.
With this in mind, you can assured that both SMD and COB LEDs will be extremely energy efficient. But pay attention that the energy efficiency varies according to the lumens used. The higher the lumen measures, the greater the energy efficiency is.
SMD is more adaptable and offers a wider range of options when it comes to color and color temperature. It is easier to get a varied color since different primary colors can be used. When you wish to adjust the color temperature, it also works. A red, green, or blue diode could be included in the chip. You can already make practically any color with these three diodes by altering the output level.
As for the COB, however, the ability to modify the colors and color temperature is limited. It is designed to emit only one color and temperature of light. But as a result, it offers more stable lighting.
When it comes to the quality of light, it is also different when SMD VS COB LED. This is primarily due to the fact that they each use different numbers of diodes, which influences the brightness and range of lighting.
When it comes to SMD LED lights, the resulting light has a glare to it and is ideal to be utilized as a point light, a result of the attachment of multiple light sources.
COB light fixture, on the other hand, will emit a uniform and glare-free light. It produces a light beam that is homogeneous and easy to modify. This is primarily because of its wide-angle beam, which makes it a better light source. Therefore, you can DIY LED COB as surface light.
The cost of getting devices built with these different technologies differs. They are both strongly dependent on manufacturing costs, which are distinct.
When compared to its counterpart, SMD has a greater production cost. For example, SMD is more expensive than COB when comparing the labor and manufacturing process to the material cost.
Generally, the cost of SMD accounts for 15% of the total material cost. As for COB, labor and production costs contribute for 10% of the material cost for. This demonstrates that chip on board LED saves you roughly 5% on manufacturing costs.
Type
Brightness
Color temperature
Using
Cost
COB
&#;80 lumen per watt
Unchangeable
Surface light
5% less
SMD
50 to 100 lumen per watt
Changeable
Point light
Higher
LED lights play an important part in our daily life, especially in photography and architectural lighting. When having a purchase, SMD VS COB LED, which is more suitable? Let&#;s have a look.
In most cases, LED COB bulbs are wildly used in LED video light for photography. As we know, COB lights features luminous uniformity because of its wide beam angle, making it preferable among photographers and filmmakers.
For example, the COLBOR CL100 is a 100W COB LED light. It provides stable 100W output in bi-color temperature, enabling you to spend less time adjusting the setting. Moreover, it is incredibly light so that you can use it for mobile filming without burden. The CL100 helps you show objects in natural colors.
In architectural lighting, COB LED chips are utilized in more complex lighting applications to provide better beam angles and more aesthetically pleasing fixtures. However, SMD LED are utilized in more general lighting fixtures like diffused panel lights, which have a frosted diffuser covering the light source.
The differences in SMD VS COB LED are various such as brightness, color temperature, manufacture cost. Meanwhile, they are suitable for different applications. Just have an understanding of them and you will get an ideal LED light for video shooting and other uses.
COB LED stands for Chip-on-Board LED. It is a type of LED light that consists of multiple LED chips mounted directly onto a circuit board. This creates a single, compact light source that is brighter and more efficient than traditional LED lights.
SMD LED stands for Surface-Mount Device LED. It is a type of LED that is soldered directly onto a printed circuit board (PCB). This makes them smaller and easier to manufacture than traditional LED packages, which have wires that need to be connected to the PCB.
COB LEDs are generally brighter than SMD LEDs. COB LEDs can produce up to three times more light than traditional LED lights, including SMD LEDs. This is because COB LEDs have multiple LED chips mounted directly onto a circuit board, while SMD LEDs have only one chip. The increased number of chips in COB LEDs allows for more light to be produced.
Here is a table comparing the brightness of COB and SMD LEDs:
As you can see, COB LEDs have a higher lumens per watt ratio than SMD LEDs. This means that COB LEDs produce more light for the same amount of electricity.
COB LEDs generally produce smoother light than SMD LEDs. This is because the multiple chips in COB LEDs are spread out evenly over the surface of the circuit board. This helps to eliminate shadows and hotspots, resulting in a more pleasing light source.
SMD LEDs, on the other hand, have individual chips that are spaced closer together. This can create a slightly uneven light distribution, with visible shadows and hotspots.
COB LEDs generally have a wider beam angle than SMD LEDs. This is because COB LEDs have multiple chips mounted directly onto a circuit board, which allows for a wider distribution of light. SMD LEDs, on the other hand, have only one chip, which produces a more narrow beam of light.
Of course, the specific beam angle of an LED can vary depending on the manufacturer and the specific LED model. However, in general, COB LEDs have a wider beam angle than SMD LEDs.
COB and SMD strip lights are generally installed in a similar manner, with some minor differences due to their different packaging structures. Here&#;s a comparison of their installation processes:
COB Strip Lights Installation:
Clean the surface: Clean the surface where you&#;ll be attaching the COB strip lights to remove dirt, dust, and grease. Use alcohol or rubbing alcohol for effective cleaning.
Measure and cut the strip lights: Determine the required length of COB strip lights and cut them along designated cutting marks using scissors or wire cutters.
Connect the power supply: Attach the power supply connector to the COB strip lights, ensuring proper polarity. Most COB strip lights have clear markings for positive (+) and negative (-) terminals.
Mount the strip lights: Peel off the adhesive backing on the COB strip lights and carefully adhere them to the clean surface. Use mounting clips for additional support if needed.
Test the lights: Plug in the power supply and turn on the lights. If the lights fail to illuminate, check the connections and ensure correct polarity.
SMD Strip Lights Installation:
Clean the surface: Clean the surface thoroughly to remove any contaminants that could interfere with adhesion. Use alcohol or rubbing alcohol for effective cleaning.
Measure and cut the strip lights: Determine the required length of SMD strip lights and cut them along designated cutting marks using scissors or wire cutters.
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Attach the end caps: Attach end caps to the cut ends of the SMD strip lights to protect the exposed circuit board and prevent moisture damage, especially for outdoor applications.
Connect the power supply: Attach the power supply connector to the SMD strip lights, ensuring proper polarity. Most SMD strip lights have clear markings for positive (+) and negative (-) terminals.
Mount the strip lights: Peel off the adhesive backing on the SMD strip lights and carefully adhere them to the clean surface. Use mounting clips for additional support if needed.
Test the lights: Plug in the power supply and turn on the lights. If the lights fail to illuminate, check the connections and ensure correct polarity.
Key Differences:
COB strip lights typically require no soldering, while SMD strip lights may require soldering for certain applications, especially when connecting multiple lengths or using waterproof versions.
SMD strip lights may require end caps to protect the exposed circuit board and prevent moisture damage, while COB strip lights generally have a more robust design that doesn&#;t necessitate end caps.
COB LED strip lights are generally more energy efficient than SMD LED strip lights. This is because COB LEDs are more densely packed together, which allows them to produce more light per watt. SMD LEDs are typically spaced further apart, which makes them less efficient.
Here is a table that compares the energy efficiency of COB and SMD LED strip lights:
Type of LED Strip Light Lumens per Watt COB LED strip lights 80-120 SMD LED strip lights 50-80
As you can see, COB LED strip lights produce up to 40% more light per watt than SMD LED strip lights. This means that you will need to use fewer COB LED strip lights to achieve the same level of brightness as SMD LED strip lights. This will save you energy and money in the long run.
COB LED strip lights typically cost more than SMD LED strip lights. This is because COB LEDs are more densely packed together, which requires more manufacturing materials and a more complex manufacturing process. As a result, COB LED strip lights are typically about 20-30% more expensive than SMD LED strip lights.
However, there are some advantages to using COB LED strip lights that may make them worth the extra cost. First, COB LED strip lights are more energy efficient than SMD LED strip lights. This is because COB LEDs are able to produce more light per watt. Second, COB LED strip lights produce a more uniform light, without the &#;spotty&#; appearance that can be seen with SMD LED strip lights. Finally, COB LED strip lights are more durable than SMD LED strip lights. This is because the LEDs are more tightly packed together, which makes them less susceptible to damage from shock or vibration.
So, if you are looking for the most energy-efficient, uniform, and durable LED strip lights, then COB LED strip lights are a good option. However, if you are on a tight budget, then SMD LED strip lights may be a better choice.
Feature COB LED Strip Lights SMD LED Strip Lights Energy Efficiency More energy efficient Less energy efficient Light Uniformity More uniform light Can be spotty Heat Dissipation Can run hotter Cooler operation Durability More durable Less durable Cost Typically more expensive Typically less expensive
Both COB and SMD LED strip lights are known for their long lifespan, with an average lifespan of 50,000 to 100,000 hours. This means that they can last for several years, even if they are used for multiple hours per day.
However, there are some factors that can affect the lifespan of LED strip lights, including:
Quality of the LED chips: The quality of the LED chips used in the strip lights will have a major impact on their lifespan. Higher-quality LED chips will typically last longer than lower-quality chips.
Operating temperature: LED strip lights should be operated within their recommended temperature range. If they are operated too hot, they will degrade faster.
Humidity: LED strip lights should not be exposed to high levels of humidity. Humidity can cause the LED chips to corrode, which can shorten their lifespan.
Dimming: Dimming LED strip lights can put additional stress on the LEDs, which can shorten their lifespan. If you need to dim your LED strip lights, use a dimmer that is specifically designed for LEDs.
In general, COB LED strip lights tend to last slightly longer than SMD LED strip lights. This is because COB LEDs are better at dissipating heat, which can help to extend their lifespan. However, the difference in lifespan is relatively small, and both types of LED strip lights should last for several years.
COB LED strip lights typically get hotter when running compared to SMD LED strip lights. This is because COB LEDs are more densely packed together, which generates more heat. SMD LEDs are spaced further apart, which helps to dissipate heat more effectively. Additionally, COB LEDs are generally more powerful than SMD LEDs, which also contributes to their higher heat generation.
COB LED strip lights typically use more wattage than SMD LED strip lights. This is because COB LEDs are packed more closely together, which generates more heat. SMD LEDs are spaced further apart, which allows them to dissipate heat more effectively and operate at a lower wattage.
The wattage of an LED strip light is determined by the number of LEDs and the power they consume. COB LED strip lights typically have more LEDs per foot than SMD LED strip lights, and they also consume more power per LED. As a result, COB LED strip lights typically use more wattage than SMD LED strip lights.
Type of LED Strip Light Wattage per Foot COB LED strip lights 5-20 watts SMD LED strip lights 3-12 watts
COB LED strip lights come in a wide variety of colors, including:
RGB: RGB LED strip lights are the most versatile type of LED strip light, as they can produce a wide range of colors by mixing red, green, and blue LEDs.
RGBW: RGBW LED strip lights are similar to RGB LED strip lights, but they also have a dedicated white LED chip. This allows them to produce a wider range of colors, including true white and pastel shades.
Single-color: Single-color COB LED strip lights are available in a variety of colors, including red, green, blue, yellow, white, and pink.
White: White COB LED strip lights can be adjusted to produce any color temperature from warm white to cool white.
COB LED strip lights can change color. They are available in a variety of RGB, RGBW, and single-color options as mentioned above.
To change the color of a COB LED strip light, you will need a controller. There are a variety of controllers available, including remote controls, smartphone apps, and voice assistants. The controller will allow you to select the desired color, brightness, and other features of the lights.
COB LED strip lights can be controlled using DMX. DMX is a digital lighting control protocol that is widely used in the professional lighting industry. It is a reliable and versatile protocol that can be used to control a wide variety of lighting fixtures, including LED strip lights.
To control COB LED strip lights using DMX, you will need a DMX decoder. A DMX decoder converts the DMX signal into a format that can be understood by the LED strip lights. The decoder will also allow you to control the brightness, color, and other features of the lights.
COB LED strip lights and SMD LED strip lights require different controllers. This is because the two types of LED strip lights have different electrical characteristics. COB LED strip lights typically have a higher voltage and amperage than SMD LED strip lights. As a result, they require a controller that is specifically designed for COB LED strip lights.
COB LED strip lights are typically controlled using a constant voltage (CV) controller. A CV controller maintains a constant voltage to the LED strip lights, regardless of the load. This is important because COB LED strip lights can draw a lot of current, and a CV controller will ensure that the lights do not overheat or damage.
SMD LED strip lights, on the other hand, are typically controlled using a constant current (CC) controller. A CC controller maintains a constant current to the LED strip lights, regardless of the voltage. This is important because SMD LED strip lights are more sensitive to voltage fluctuations, and a CC controller will help to protect the lights from damage.
In addition to the type of controller, COB LED strip lights and SMD LED strip lights also have different connectors. COB LED strip lights typically use a 5-pin connector, while SMD LED strip lights typically use a 4-pin connector. This is important because the connectors are not compatible with each other.
COB and SMD LEDs both have their own unique advantages and disadvantages, making them suitable for different applications. Here&#;s a summary of when to choose COB LED over SMD LED:
Choose COB LEDs when:
Brightness is crucial: COB LEDs produce significantly higher light output compared to SMD LEDs, making them ideal for applications where intense illumination is essential.
Uniform light distribution is essential: COB LEDs offer a smoother, more uniform light distribution, eliminating visible shadows and hotspots. This makes them suitable for task lighting, architectural lighting, and applications where a seamless visual appearance is desired.
Wider beam angle is needed: COB LEDs typically have a wider beam angle, spreading light across a larger area. This makes them suitable for general illumination, stage lighting, and applications where broad coverage is required.
Heat dissipation is not a major concern: COB LEDs generate more heat compared to SMD LEDs. Ensure the application area has adequate heat management if using COB LEDs.
Choose SMD LEDs when:
Cost-effectiveness is paramount: SMD LEDs are generally more affordable than COB LEDs, making them a cost-effective choice for budget-conscious applications.
Compactness is crucial: SMD LEDs are smaller and more compact than COB LEDs, making them suitable for applications where space is limited.
Versatility in color temperature is needed: SMD LEDs offer a wider range of color temperature options, catering to diverse lighting needs.
Durability and reliability are essential: SMD LEDs are known for their durability and long lifespan, making them suitable for applications that require ruggedness and longevity.
Ultimately, the choice between COB and SMD LEDs depends on the specific requirements of the application. Consider factors like brightness, light distribution, beam angle, cost, compactness, versatility, and durability to make an informed decision.
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