In this article we will show you the main characteristics of SMD (Surface Mounted Device) type LEDs and the various types of existing models. We will provide you a series of useful application tips to be able to get the best from the different models existing today. This guide will not only provide information on the most commercial and widespread models of SMD chips, but also takes into consideration special models of SMD LED sources that we present to the public here and which constitute an innovation capable of creating new lighting effects and solving problems up to now difficult or impossible to solve.

For more led smd vs information, please contact us. We will provide professional answers.

SMD LED: characteristics and uses

SMD type LEDs are light sources that have the characteristic of being installed in circuits directly mounted on an electronic board. These circuits are perforated to allow the passage of the electrodes, whose welding is carried out on the lower face of the base. These are components where the electrodes do not protrude downwards, but come out from the sides of the chip. They are characterized by their flat shape: the lower part is welded directly on the electronic board, while the electrical connections are on the side. In this way it is possible to use printed circuits on an insulating base of reduced thickness and to carry out the micro-welding with automated machinery. This type of LED looks like a tiny box with one face from which the light is emitted, the opposite face which acts as a support base, while the remaining side faces are equipped with anode and cathode. In the past they have been used in miniature circuits, such as those of mobile phones, thanks to an ever higher luminous efficiency. Today they are widely used in the production of LED luminaires for general lighting. This type of LED normally has a light output of 120 degrees and is typically used, for example, in the production of LED strips.

In essence, it is a really interesting family of LED diodes since today it finds a great application both in the production of LED strips and in the production of LED luminaires and especially where high efficiency and the achievement of very high lumens are required together with a control of the very precise light distribution (LED luminaires for public, industrial, cultivation lighting, etc.). The SMDs are also a family of LED sources that allow the achievement of high standards of reliability and durability thanks to the possibility of fragmenting the power of the luminaire into a plurality of diodes to be powered with voltage generally in the order of milliamps (mA) (for an in-depth study on the thermal management of SMD LEDs in relation to COB LEDs (we invite you to read this dedicated article).

Comparison of the main types of SMD LEDs

Model

Length

 (mm)

Width

(mm)

Lumen

(lm)

Voltage

(V) 2,1 1,0 8-12 2.8-3.3 2,2 1,6 6,5-7 2.8-3.3 2,7 3,5 4-8 2.8-3.3 2,8 3,5 8-14 2.8-3.3 3,0 1,4 10-12 2.8-3.3 3,0 2,0 10-12 2.8-3.3 3,0 3,0 61-85 2.8-3.3 3,5 2,8 6-7,5 2.8-3.3 5,0 5,0 16-24 2.8-3.3 5,6 3,0 54-56 2.8-3.3 5,7 3,0 25-28 2.8-3.3

SMD LED: characteristics of the different types

The models of SMD LED sources mentioned above all have peculiar characteristics that justify their existence. As is intuitive from reading the table, the name of each model corresponds to the size of the chip expressed in millimeters. Here we will explore the most popular models, as well as the most performing and professional ones that can be effectively used in general lighting.

SMD LED and

SMD LED

SMD LED diodes represent the older models and are characterized by a not particularly high light output. The diodes are therefore mostly used in decorative lighting and are characterized by their low cost. On DOMAGIC you will find the 4.8W/m and 9.6W/m LED strips.

SMD LED

The SMD diodes, on the other hand, are more recent and have enjoyed an excellent diffusion on the market thanks to their greater efficiency and the possibility of making LED strips with a good density of diodes. This last aspect is fundamental when you want to create a luminous effect of continuous light and avoid the unsightly &#;dots&#; or &#;dotted&#; effect, which is inevitable where SMD diode models characterized by a diode density of less than 120 per meter are preferred. DOMAGIC presents various models of SMD diodes with various powers: 14.4W/m (120 LED/m), 17.3W/m (168 LED/m) and 20.2W/m (240 LED/m) with high color render (CRI>95).

SMD LED

SMD LED

SMD LEDs are among the first diodes capable of delivering adequate power for general lighting needs. The LED strips that mount them, however, have the drawback of having a low number of diodes per meter (generally 30 or 60 per meter) and this inevitably leads to the unsightly &#;dotted&#; or &#;dots&#; effect due to the excessive separation between diode and diode. The powers available generally range from 9.6W/m to 28W/m.

SMD LED and

SMD LED

SMD and diodes have in common their recent development and great brightness. These are LED diodes suitable for use where high lumens are required. DOMAGIC has long been available the 26.8W/m (120 LED/m) LED strip capable of expressing 2,660 lumens per meter, today surpassed by the clearly superior performance of the 21.6W/m LED strip with a density of even greater LED diodes (as many as 168 LEDs/m) and an extraordinary level of efficiency higher than 146lm/W (with a flux at K Ra>80 equal to lumens per meter).

SMD LED

The SMD LED diodes are among he most recent and in addition to the excellent brightness they have the particularity of being able to be mounted very close together almost eliminating the space between diode and diode. The result obtainable from these strips is a beautiful continuous light effect even when mounted on aluminum profiles with transparent or extra transparent refractor. This SMD LED model allows you to even reach up to 700 diodes per meter!

When to choose a certain model of SMD LED: application tips

As seen, each SMD chip model has its own characteristics and peculiarities that require and justify its use in certain applications and this based on two fundamental factors which are:

• performance

  : understood as luminous efficiency, power, useful life, type of step (ie how many millimeters the strip can be cut), width of the LED strip;

• light effect

  : which can vary depending on the density of LED diodes per meter, the supply voltage of the strip, the quality of the diode in terms of color rendering as well as the quality of the color temperature.

Starting from the performances, first of all I will have to ask myself the following question:

do I need a decorative LED source or for general and functional lighting?

In the first case, if the need is to have a decorative LED strip, the choice can fall on SMD LED diodes, which as mentioned are characterized by the possibility of having limited powers (starting from 4.8W/m ). However, if the application requires good light homogeneity, it will be necessary to choose intermediate powers such as 9.6W/m so as to have at least 120 diodes per meter (4.8W/m are generally distributed on strips of 60 diodes per meter), possibly from combine with dimmer to adjust the intensity of the emitted flux if it is excessive.
The aspect to consider is that the characteristic energy efficiency of the SMD LED diode is not the highest in the face of a rather low purchase cost. Also for this aspect it is worth comparing with the characteristic elements of the concrete application: if the strip is destined to remain lit on average for a short time a day it will be worthwhile to buy the model since the aspect of energy efficiency passes into second floor compared to the lower purchase cost. If, on the other hand, the application requires medium-intensive uses, it is advisable to refer to the SMD LED model.

As for the model, it is an SMD chip which in terms of cost quality turns out to be one of the best ever. The LED strips that mount it can be used both for a decorative function and for a real lighting function. This is because it is a chip that has known a great favor on the market and is therefore available at low powers (tipically 4.3W/m, 4.8W/m, 6W/m, 7.2W/m, 8.6W/m, 9.6W/m and 10.1W/m) as well as powers suitable for lighting entire rooms (14.4W/m, 17.3W/m, 20.2W/m). Furthermore, starting from 14.4W/m the strips have 120 LEDs per meter, to go to 168 LEDs per meter for the 17.3W and 196 LEDs per meter for the 20.2W (in this case arranged in two parallel rows). On DOMAGIC we offer high quality LED strips with SMD diodes, capable of producing high lumen light beams with excellent color rendering (from CRI>85 up to CRI>95). In the opinion of the writer, this is a choice that makes the most of in applications that require a high quality, homogeneous and powerful general lighting solution (and therefore with powers starting from 14.4W/m).

From the above it appears that, in general, we tend to recommend strips with SMD LEDs instead of the s as the former, in addition to guaranteeing optimized heat distribution thanks to the greater number of diodes per meter, allow the creation of truly homogeneous continuous light. The second, as mentioned above, produce the dotted effect which in most cases turns out to be unsightly. Click on the link for more information on the comparison between and chips.

As for the SMD and models, these are sources capable of emitting high or very high lumens, particularly suitable for professional lighting and for applications in which opal screens are used (capable of significantly reducing the actual luminous flux emitted. from the luminaire) or to minimize the dispersion typical of applications that require indirect light (so-called soft light). In these cases, thanks to these models of SMD LED diodes, it is possible to obtain large lumens with less energy absorption and therefore effectively illuminate, for example, large areas, very high rooms or create lines of light hidden in plasterboard veils. If it were then necessary to create the lighting of offices or similar workplaces, thanks to these sources it is normally possible to reach the levels of illumination prescribed by the regulations in force, perhaps in combination with anti-glare microprismatic screens able to manage and control the emission. diffuse typical of the strips (120°) and thus minimize the risk of glare (UGR<19).

Particularly bright and qualitative strips are those that we offer in the version with K light tones, very high chromatic fidelity (CRI>90) and very high lumens (150 lumen/W) and which are fitted with the SMD diode. These LED strips have 80 diodes SMD by the meter of the Nichia brand, one of the best producers of SMD sources in the world, and are characterized by a truly exceptional purity of light. These are professional LED strips capable of ensuring maximum reliability even in intensive applications.

As for the brand new SMD LEDs, it should be underlined here that through this technology it is possible to create continuous lines of perfectly homogeneous light even in the presence of transparent or ultra-transparent refractors, even in the total absence of refractor. This is because the very high density of the number of diodes prevents the human eye from viewing the hundreds of point sources individually, giving way to the vision of a perfectly homogeneous strip. Also in this case, since the luminous efficiency is comparable to strips with SMD diodes, it is advisable to purchase it for professional use where the lighting effect, unique and exclusive, is the prevailing need.

Fundamental in the choice is then the verification of the size of the LED strip (it generally goes from 8mm in width to 15mm of the LED strips with double row of SMD diodes) which will be considered in the choice of the aluminum profile in which to lay the strips themselves. last element that must never be missing to allow the best heat dissipation and maximize the useful life of the SMD LED sources and which it is good to check the dissipating capacity in terms of Watt (on DOMAGIC the data is specified for each aluminum profile or linear system). In addition to the size, the pitch of the strips also plays a fundamental role: for example our 4.8W/m strip with diodes can be cut every 100mm, the 20.2W/m can be cut every 71mm, while the strip with 26.8W/m can be cut every 50mm.

As for the power supply voltage, whatever the chosen strip, it is highly inadvisable to purchase them with a 12V/DC power supply voltage and this to avoid voltage drops. In general, if you exceed 5 meters in length or if there are no particular problems, it is always good to have strips powered at 24V/DC and this to ensure the best uniformity of voltage and therefore of brightness.

Representation of the color rendering level on the CIE color plates

Always in general, whatever the choice of SMD chip model, it is always good to check that the strips are of quality, that is, they are reliable and with high quality of light. Reliability essentially depends on the components of which the strip is made and, above all, on the brand and model of the diode.

The light quality, on the other hand, is expressed in the quality of the light tone (warm, neutral or cold light) and in the ability of the light to faithfully reproduce the colors of the environments and of the things and people they contain and which is measured from 0 to 100: CRI>95 means that the source is capable of reproducing colors with a practically maximum level of accuracy and fidelity, CRI>98 or Full Spectrum (FS) means maximum levels of chromatic fidelity. These are aspects of fundamental importance which, together with all the above, justify the price differences that can easily be observed by comparing the wide range of LED products on the market today.

CRI>80, CRI>95 and CRI>98 (FS) in comparison

DOMAGIC&#;s philosophy is to offer high-performance lighting solutions, able to respond excellently to any need, as we want to allow anyone to equip themselves with the best possible technology without compromising on quality. In addition to the available catalog, we are able to create customized SMD LED sources in every aspect. We are often chosen by companies, as well as by individuals, and this testifies to the trust our customers place in us and in our LED solutions! Contact us to find out more or visit our online shop.

You can learn more about the difference between COB diodes and SMD diodes by clicking on this link.

Comparison of SMD LED Types and Application Tips

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Comparison between LEDs and LEDs: What are SMD and SMD LEDs?

Here's an easy-to-understand comparison between LED chip numbers and sizes.

The different numbers correlate to the different physical dimensions of the chip. The numbers , , , etc correlate to the size of the chip in millimeters. Some LEDs are brighter than others and some give off more light per watt.

 

The LED chip you will need will depend on your project. Read below for more information.

Before you start, are you new to LEDs? A few resources:

LED Strip Light Product Selector Tool - Find the perfect strip light for your project. 

What are LED strip lights and what can they do?

LED Strip Light Examples and Ideas

Showdown: The Difference Between LED vs

LED strip lighting can be manufactured with a variety of LED chips. The numbers you see such as and refer to the size of the chip. The older style strips that have been popular for a few years now are the sizes seen above. Currently, there are even smaller and more efficient LED chips on the market with the sizes of , , , and . Each have benefits when used properly. No "one" chip can rule them all. 

So, what is the difference between SMD  and LEDs and why should you care?

 

SMD LED Flex Strip light

Simply put, these LED chips are called SMD because the dimensions of the chips are 5.0mm x 5.0mm. They have 3 LED diodes in one housing (sometimes called tri-chips), and are a lot brighter than individual LED chips.

These are examples of LED light strips:

They are used when you need slight illumination for your project area and especially RGB color changing lights. Theoretically, comparing the same number of chips, SMD LEDs can offer a light output 3 times that of the strips, and therefore the LED is well suited for lighting up areas that may be subject to high levels of ambient light. However, since they are larger in size, there are only so many you can fit onto the PCB. There are some brightness restraints when using the s in this way.

Though they produce more heat than smaller chips, it is still drastically lower than other lighting options. These types of LEDs require a thicker PCB to draw the heat away form the chips.

The 's are different from the  LEDs in that s can combine the three different chips to inside the housing to create millions of color variations.

While the chip can be used in single color applications, we have found the LEDs to be better for the RGB and the SMD LEDs in high density better for single color applications.

  

SMD LED Strip light

The company is the world’s best led smd vs supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

They are called SMD because the dimension of the chip is 3.5mm * 2.8mm. These LED chips (one LED per chip) are bright but not as bright as the side by side. However, when used in higher quantity can be brighter then a comparible strip of s.

These lights are great for TV backlighting, color splashing walls, accent lighting for crown molding and pictures, under tables and cabinets, bars, etc.

LEDs can be most cost effective, but will not be as bright when compared individually to a chip, but when there are 600 of them on a reel, they can be brighter than a strip.

Buying Tip: When comparing LED strip lighting between companies, if both competing strips are using the same chips, look at how many LED are on the strip and look for lumen output to determine brightness. 

Pay attention to how many LEDs there are per foot or meter. When searching for a bright LED strip light, make sure you compare apples to apples, as not all LED strips are made in the same way. 

Watch: YouTube Video showing how our LED strip lights come with 600 LEDs per reel Instead of 300

LEDs in various lighting projects

 

 

Other sizes: LED chips and LEDs in high brightnes

s LED strip lights

The UltraBright Series are of the Brightest LED strips in the world!

 

SMD LED chips

LED chips

Though and SMD LEDs were the most popular on the market for strip lights, the LED market has changed rapidly over the past few years. 

Today, there are many LED chips available that are brighter and also more efficient. The  SMD LED chips in our High CRI UltraBright Series and SMD LED chips in our Architectural Ultra Bright and Design Series Ultra Bright LED strip lights are smaller and more efficient than their predecessors. Because the LED sizes are much smaller, we were able to fit many more of them onto the strip lights, thus creating blindingly bright LED strips. Our Industrial LED strip lights use a new advanced chip. 

 

 

 

So, What does all this mean?

Should I choose , , , , or some other size I have never heard about?

The size of the chip and how many chips you will need depend upon the use for which the LED strips are going to be used. We can help you design your project and select the strip and chip needed, for free!

We recommend doing an overview of your project and asking some main questions.

Start by deciding what you want/need the lighting for.

1. View our Buying Guide

2. What is the project? Do you want accent lighting, principal task lighting, color changing, lighting a display case, outdoor, etc?

3. Dimmable or non dimmable capability?

4. Which color do you want?

5. Do you require very high CRI

6. What brightness is needed?

7. Do you need it waterproofed?

When purchasing LEDs, please pay attention and compare the following: 

1. Look how many LEDs are on the reel or per foot and 

   the total lumen (brightness) of the LED strip light

2. Pay attention to the CRI ( Color Rendering Index ) - Our CRIs range between 80 - 95.

3. How many watts does the strip use?

4. Are the UL or ETL safety listed?

5. Are they dimmable?

6. How many ounces of copper do they use in their PCB to dissipate the heat? (we use 2-4oz)

7. What type of LED chips are used?

8. How are the LEDs binned? (will you get the same color every time you order?) 

   *Please be hesitant to purchase if the supplier does not offer this information, as these are important specifications to know when purchasing a quality product. 

 

LED strip lighting 101: Great and informative introduction pages: 

1. What is an LED strip light and what can they do?

2. What do I need to know before I choose an LED strip light?

3. LED Strip Light Examples and Ideas

4. LED strip light product comparison chart

5. How does Flexfire LEDs manufacture the highest quality LED strip lights? 

 

Have Questions? Our design experts are waiting to assist you with any question! 

 

If you are looking for more details, kindly visit cob led chip manufacturers in china.