The most complete introduction about COB led strip lights, you must read before buying led strips.
this article will share you about what is COB? What is the internal structure of the COB led strips? What kind of characteristics does it have? What benefits can each feature bring to our life and design?
this article can give you a more comprehensive understanding of the COB led strips, so that you can better use Yiford COB soft light strips to create novel products or meaningful lighting projects
Table of Contents
Before looking for these answers, please take 30 seconds to look at the whole COB light strips and have a basic impression of it.
Review COB LED Strips by video
There are more than a dozen features listed in this article, some of which may be known to you, and some may not be known to you.
I hope this article can give you a more comprehensive understanding of the COB led strips, so that you can better use Yiford COB soft light strips to create novel products or meaningful lighting projects.
I ever used to DIY COB led strips on some objects in the home and office. It was really great. I recorded them before and after installation and made short videos. You can refer them on Shirley channel on youtube.Click here to review installation effect videos
This article is about 3,000 words and it takes 10 minutes to read. I have made it into a video with subtitles, which can be watched on the YouTube channel. please click above picture to watch video directly.
COB Means What?
What is COB?
COB is short for Chip On Board, which means that the chip is directly packaged on the PCB.
The COB light strip is a light strip that encapsulates the chip on a flexible board. Chips mostly use flip-chips, which are linearly solid-bonded on the PCB, and then a layer of packaging glue mixed with phosphor is directly dropped on the surface of the chip. The light emitted by the chip is refracted, reflected, and interacted with the phosphor inside the encapsulating gel. The gel uniformly emits light of different colors and color temperatures.
it is a new type of process technology, based on the SMD led strips with further evolution. In order to facilitate your understanding, I drew a side sectional view.
What is SMD?
SMD is the abbreviation of Surface Mounted Devices, which means: Surface Mounted Devices, which is one of the SMT (Surface Mount Technology) components. Surface mount devices have become the current mainstream electronic assembly technology due to their small size, light weight and high power.
Surface mount device packaging is to attach electronic components directly to the substrate, that is, to package and place the chip components on the printed circuit board, and use a reflow furnace to melt the solder alloy interconnected by the electronic system, thereby realizing the interconnection between the chip components and the substrate. Main technique
High assembly density, small size and light weight of electronic products. The volume and weight of SMD components are only about 1/10 of those of traditional plug-in components. Generally, after SMT is used, the volume of electronic products is reduced by 40%~60%, and the weight is reduced by 60%~ 80%.
High reliability and strong anti-vibration ability. Solder joint defect rate is low.
Good high frequency characteristics. Electromagnetic and radio frequency interference is reduced.
Easy to automate and improve production efficiency. Reduce costs by 30% to 50%. Save material, energy, equipment, manpower, time, etc.
what is led strips?
LED is short for Light Emitting Diode. The light strip refers to the special processing technology of the LED light welded on the copper wire or the strip flexible circuit board, and then connected to the power supply to emit light.
led strips features
1. Soft and can be curled like a wire;
2. Can be cut and extended;
3. The light bulb and circuit are completely covered in flexible plastic, which has good insulation and waterproof performance and is safe to use;
4. Strong weather resistance;
5, not easy to break, long service life,
6, easy to make graphics, text and other shapes.
Compare to COB LED Strips and SMD LED Strips
We can see that the chip is directly connected to the PCB board. The chip on SMD is connected to the PCB board through the bracket and the solder point. SMD’s frame of the bracket has a certain thickness, while the COB light strip does not have this bracket.
so on the same length PCB board, COB type light strips There are more chips that can be arranged, and the density is higher. One meter can reach 1000 or even 2000 pieces of chips. The brightness and uniformity of those COB led strips far exceed the SMD led strips.
COB light strips vs SMD Light Strips
Let's light it up and see the comparison. The COB led strips have a linear light-emitting surface due to their high chip density, while the SMD led strips can see obvious light spots and dark areas. Of course, this dark area and light spot can be solved by adding aluminum profiles and diffusers, just like this. And COB light strips can become very uniform without adding diffuser. In this way, a lot of material costs and labor costs can be saved.
What are the features of COB soft led light strip?
Feature 1: Uniform light
Good Luminous Effect
No Light Spots, No Dark Areas, Greatly Saving Material And Labor CostsWhen introducing the structure of the COB led strips, you may have realized that the most obvious feature of the COB led strips is that it emits uniformly, without bright areas and dark spots, and has good overall consistency, soft and non-glaring. This is why more and more customers like to buy Yiford COB light strips.
Feature 2: High Color Rendering Index
rich color reproduction
It can make the color reproduction better, the object looks richer in color, and the details are more obvious. If you have higher requirements for the color reduction, and hope that the light can better restore the color of the object itself, let the object looks more realistic and more eye-catching, then you must use Yiford high CRI COB led strips, Because compared to the SMD led strips with a color rendering index of about 80, the COB led strips have a high color rendering index of over 90. What effect can the high color rendering index bring to the illuminated object? Let’s take a look at this comparison chart. Under the illumination of this high color rendering index COB light strips, the illuminated object has richer colors and color gamut. More extensive, more visible parts, more obvious details. Therefore, Yiford COB soft light strips are widely used in instrumentation, monitoring, machine, museums, jewelry, kitchens, fresh food stores, display areas, and so on. Recommend read: What is Color Rendering Index and Why Choose it Important | Understanding CRI: why-choose-high-color-redering-index-what-is-cri
Feature 3: Good flexibility
strong torsion, good ductility, good effect.This kind of COB light strip is very flexible. Just like this, it is tied into a knot and pulled into a smaller knot. You see, this COB light strip is still good. Of course, my operation demonstration is an extreme test. It is not for you to use it like this. It is just to show you the folding resistance of the Yiford COB light strip. It is indeed very soft and can withstand stronger distortion. In actual use, please use the COB light strip under the instruction manual. great flexibility function allowing you to obtain the shape you need. With the strong adhesive, the cob led strips are easy to install in narrow places. such as modeling, advertising, luminous signs, contours and so on.
Feature 4: Can be cut
easy cut shorter
Parallel circuit boards, cut as long as you want, which greatly facilitates DIY and small scattered projects, COB light strips are generally packaged in a roll of 5 meters. In actual use, the length of the light strips we need will not be an integer of 5 meters. At this time, the cutting characteristics of COB led strips are very useful. Measurement The required length first. Then find the place where the COB led strips is closest to the required length, cut it along this cutting line and it can be used alone, which greatly facilitates the DIY project.
There are two ways to connect, one is to connect the solder point of the two light strips with an electric soldering iron and welding wire, and the other is to use Yiford solder-free connector.
This crystal connector has a built-in metal pin. Just press the metal pin to the solder On the solder point, the two light strips can be energized and connected. After the connection is made, there is almost no gap in the middle. At the same time, because the crystal connector is transparent, it is almost impossible to see the connector in the middle after lighting up. The effect is supergreat. click here to watch video for how to use the cob led strips connector
For connection methods and accessories indication, please watch Yiford’s video “How to cut and connect COB soft light strips”. Without any fixture, the light strips can be connected in a few seconds, which is durable and effective.
If you need to quickly connect the COB light strip, you must not miss the YIFORD accessory connector.
Below are the videos for the single color and mutil color led strip lights. you will understand each color’s effect:
Feature 5: Ultra-thin
easy to hide
The thickness is only 2mm, only to see the light, no light source, not dazzling and more attractiveYou see, the COB light strip is very thin, with a thickness of only 2 mm, which is 1/16 inch. It can be easily installed in a small space and can be easily hidden. Whether it is a large project or a small product, it is inseparable from the assistance of light. Many times we hope to add some light to the object without increasing the size of the object itself, or hope that the light will not be directly seen. For example, if you install COB led strip into furnishings or wall murals, it is very easy to hide it, you can't see the light strips, only the light. Isn't it very easy to use?
colorful lights for space
There are monochromatic ones, as well as RGB colorful ones, applied to the lighting requirements of various occasions. Colorful colors create a colorful world. We cannot live without a variety of colors, red, green, blue, yellow, purple, pink, etc. Yiford company provides COB in a variety of colors of Light strips, and there are turnable white changeable， colorful changeable， pixel controlled programmable strips， etc., With Yiford LED controller and dimmer, the color of the COB light strip is more extensive. With these COB light strips of different colors, I believe you will easily find the light color you like, and you don't have to worry about matching colors anymore.
adjust brightness and programme
Free choice of brightness and darkness, stepless dimming from 0-100. Moreover, these COB led light strips can also be dimmed, like this, they can be brightened and dimmed, and they can also be compatible with home automation and DMX systems, wall dimmers, and remote dimmers. It’s really smart to adjust what kind of lighting you like.
Feature 8: High Brightness
More than 1,000 lumens per meter, can be decorated and illuminated You may also ask, how is the brightness of such a small light strip? You can rest assured that the light-emitting area of the COB soft light strip is relatively large, and the ordinary COB led light strip can achieve 1,000 lumens per meter, or even as high as 2,000 lumens per meter. Whether it is used on ceilings, walls, floors, interior, and exterior use, no matter for decoration or lighting, it is a very good choice.
Feature 9: Energy saving
low energy consume
It can replace traditional light bulbs with 5-20 times the power, saving energy and electricity costs. Compared with ordinary incandescent bulbs or tubes, LED has a life span of more than 30,000 hours, which is more energy-saving and durable！ According to calculations, LED lights can save up to 80% of electricity. However, its lighting is not worse than ordinary electric lights. For example, the brightness of a 13-watt LED bulb is equivalent to that of a 100-watt ordinary incandescent lamp, and its life span is 10 times that of an ordinary incandescent lamp, and can be used for more than 10 years. Using COB light strips instead of traditional incandescent or fluorescent lighting can save a lot of energy and electricity bills.
Feature 10: Environmental protection
protect the earth
The material does not contain harmful substances ,pollution-free, and has certification, At the same time, the materials of the COB led light strip, whether it is PCB or lamp beads, are environmentally friendly materials and can be recycled. It does not contain harmful substances such as mercury and lead, does not contain ultraviolet rays and infrared rays, safer for your eyes will not cause pollution and damage to the earth, and is environmentally friendly and healthy.
Feature 11: Light weight
no responsibility for the increase of the installed body, A roll of 5 meters of COB light strips weighs only about 80 grams, which is convenient to handle, and the transportation cost is relatively low. At the same time, it will not add weight to the objects to be installed. If you are looking for a light, thin, soft, and small light source, you must not miss Yiford COB led strips.
Feature 12: Easy install
Comes with extremely sticky 3M glue, which can be attached after tearing off, which is very easy to install. The installation of the COB soft light strip is also very simple. It comes with double-sided adhesive. After tearing off the adhesive, it can be pasted and used. The stickiness is also strong, such as plastic board, wood board, cardboard, glass, metal, and other smooth and clean objects can be pasted.
Indoor and outdoor use
Whether It Is Rainy Or Bad Weather, It Can Work Normally, And Can Be Used Indoors And Outdoors. If you want to use COB light strips outdoors, you can choose Yiford high waterproof grade soft light strips. A protective cover is added on the surface to prevent water from penetrating the light strips, even in bad weather or even underwater. It can be normal use. For the light strips of the waterproof series, please refer to Yiford website.
Waterproof COB light strip into water.
This wave is wonderful. Throw the COB light strip into the water. It can still work normally, with even light and waterproof grade of IP67. outdoor lighting, Don’t worry about being hit by rain on your light strip.
DIY cob led strips to fish tank
What can the led lights of the fish tank do?
1. Simulate sunlight 2. Ultraviolet LED light can sterilize 3. Helping water plants grow 4. Decorative effect
Feature 14: Safe to touch
Low voltage as DC 5V/12V/24V, It is safe to touch even while working., COB light strips are using low voltage DC 5V/12V/24V power supply voltage, you will not feel it when you touch it. Both the elderly and children can be used safely without causing safety hazards.
Why choose low-voltage light strips？
Feature 15: Low heat
Wide range of lighting
Earlier we saw the structure of the COB led strips. Its chip is directly connected to the PCB. The chip emits light directly from the bottom without any obstructions, so the light-emitting angle can reach 180 degrees. The SMD led strips have a bracket, and its light-emitting angle can only reach 120 degrees under the influence of this bracket. The COB led strip with a light-emitting angle of 180 degrees can illuminate a wider range.
Feature 16: Wide emit angle 180 degree
easy spread the heat
The copper plate has its own heat dissipation function, which can quickly dissipate the heat, and the self-heating is low. Ordinary incandescent lamps or fluorescent lamps emit a lot of heat, so you can't touch them after a few seconds of work. Since the COB chip is directly bonded to the PCB board, the heat of the chip can be quickly transferred to the PCB board. Therefore, the heat dissipation speed of the chip of the COB light strip is faster than that of the lamp bead type, and the light decay of the COB light strip is smaller and the life is longer.
As a new type of luminous product, the COB light strips have more functional enhancements due to technological innovation. Its features are far more than what I have introduced in this video. I believe you can discover more COB light strips when you use them. Use its characteristics to create more meaningful products or more interesting lighting projects.
Thank you for reading our introduction about the features of COB led strip lights. Those who can see here must be those who really love LED lighting. You may be an interior designer, product designer, electrical engineer, architect, LED wholesaler, lighting distributor, factory, trade…
If you are looking for a high-quality LED lighting manufacturer, with 3 years after-service, As long-term partners who are familiar with the market and end users, please contact YIFORD. Yiford is happy to provide free samples for your testing.
Want to know YIFORD company, please watch the video:
Which COB strip is the most suitable?
In order to meet the diversified needs of the market, Yiford has launched different series of led lights, and provided dozens of different COB light strip products for buyers to choose. Different voltages, different brightness, and different colors, is it a bit dazzling? Don’t know what to choose? Don’t worry, you will understand after watching this article.
- If you are a wholesaler or agent, it is certainly correct to choose the hottest selling items.
- If you are a designer and want to choose the most suitable COB light strip for the project, it is recommended to check the Shirley Youtube channel’s video on “How to choose the most suitable COB light strip”, combined with the introduction of the product details on the website WWW.YIFORD.COM, You can have a comprehensive understanding of this product before buying, and quickly confirm the most suitable product by yourself for your project.
- If you are undecided, you can also let us help you choose. You can send the lighting requirements to INFO@YIFORD.COM, and we will have professionals to reply you within 24 hours.
Start choose COB LED Strips
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The main types of COB light strips from Yiford company:
Warm white, neutral white, cool white and adjustable white.
Monochrome-red, green, blue, yellow, pink, purple.
Color-changing RGB and addressable LED strips.
Outdoor waterproof light strips.
Different voltages 5V 12V 24V.