SMD LED modules are now widely used in the manufacture of LED luminaires and LED strips for various applications in different sectors. This technology is used wherever high efficiency and precise control of light distribution is required.
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SMD LEDs are characterised by high durability, low power consumption and high standards of reliability and safety. But what are SMD LEDs? Let's find out together.
In this in-depth look at SMD LEDs we will cover the following topics:
Let's shed light on SLIM light signaling solutions
- Light signaling units: they are basic units consisting of a light source, a connection and a plastic support.
- Light indicators for panels: they consist of a light source, a plastic body to which a lens is assembled for the fixing, through self-locking fins or nut, on the application panel and a connection.
- Micro LED spotlights: they are luminous markers with an SMD LED light source with high luminous intensity.
- Vandal proof indicators: they are IP65 light indicators with a metal body part, more resistant to mechanical and chemical "stress" conditions.
- Optical fibre: this is an optical fibre, with lateral light emissions, with light sources for design light signaling applicable in for various application sectors.
- Switches: rocker, push switches and light indicators, with unipolar and bipolar controls. They are available for different sizes of the drilling template.: they are basic units consisting of a light source, a connection and a plastic support.
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SMD LEDs and SMD LED chips: what they are and what they mean
SMD LEDs stand for Surface Mount Device and Light Emitting Diode. The combination of these acronyms indicates electronic components made up of LED modules that are mounted directly on one side of the printed circuit board using surface mount technology, known as SMT.
SMD LEDs are characterised by a parallelepiped shape, called a chip, which contains the emitting surface inside. The diodes that power the device are located on the sides.
Soldering SMD LEDs: how to do it?
SMD LED chips are self-contained LED devices that are mounted on the surface of the printed circuit board (PCB) by soldering, using SMT technology. This practice allows the SMD LEDs to be soldered onto both sides of the circuit board, without cutting or drilling into the board.
The advantages of using this type of component assembly are:
Types of SMD LEDs: all those you need to know
There are different types of SMD LEDs, and each variant is identified by a series of numbers that define its size and associated brightness level. The LED identification number corresponds to the size of the chip itself, expressed in millimetres.
As for the main types of SMD LEDs, the most common on the market are the . This was one of the first LEDs to appear on the market and is characterised by a power of between 6 and 8 lumens, a consumption of 0.20W and a very low light output.
The SMD LEDs provide an output of between 16 and 22 lumens. They are among the first chips to generate higher power and are therefore suitable for general lighting needs.
The recently developed SMD and LEDs provide good brightness at low power consumption and are therefore very popular. These SMD LEDs are suitable for use where high lumens are required.
Finally, SMD and LEDs are identified as having the longest life and best performance, due to the presence of a heat sink inside them that prevents the source from overheating. This type is usually used on LED strips for both lighting and purely decorative purposes.
SMD LED dimension
SMD LED chips are characterised by a rectangular shape that varies in length and width depending on the model. Generally, however, regardless of size, SMD LEDs do not exceed 5.7 millimetres in length and 5 millimetres in width.
The size of the SMD LED is what has the greatest influence on the brightness and power consumption of the device. The larger the device, the higher the brightness level. These characteristics are easy to understand thanks to the numerical abbreviation that identifies the different types of LED.
COB o SMD LEDs - what are the differences?
The term LED is often found in association with other acronyms, as seen with SMD LEDs. The term COB LED refers to chip-on-board LED technology. This technology was introduced in and enabled the development of high-power diodes with a small light-emitting surface area.
Why should you choose COB or SMD LEDs? The introduction of COB LEDs has brought with it some significant advantages. First of all, the possibility of miniaturising the luminaires and the light sources inside them. COB technology facilitates the installation of individual plates in close proximity. This allows precise control of the distribution of the light beam thanks to the absence of space between one LED module and another. However, one application limitation of this technology is the power rating of the luminaire (possibly less than 50/70W) on which it is to be installed. SMD LEDs are to be preferred over COB technology precisely because they are more reliable and perform better in high power applications.
Contact us to discuss your requirements of what is the difference between led and cob led. Our experienced sales team can help you identify the options that best suit your needs.
Micro LED SMD - what are they
Today's market demands ever smaller, yet more efficient LEDs. The search for even better-performing SMD LED chips has led to the development of devices capable of achieving truly brilliant lumen/Watt ratios, thus enabling the development of ever-smaller luminaires. This has led to the development of SMD micro-LEDs, highly efficient miniaturised technologies for small circuits.
One example is the micro-LED circuit developed by Luxelt. The Italian company, which specialises in the design and production of electronic and lighting systems, has developed cutting-edge technology that we have used in our new series of micro-LED spotlights.
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SMD RGB LEDs - what they are
SMD RGB LED technology allows the colour of light to be changed by using three diodes: red, blue and green. In order to vary the colour of the light, these diodes are mixed according to precise intensities.
In backlighting projects, it is common to use an RGB SMD LED source to give the light profile an aesthetic and design component and at the same time a functional aspect. Each colour can be associated with a specific application status to communicate a precise function to the end-user.
SMD LEDs: the colours available
SMD RGB LEDs offer a wide variety of colours in different combinations: blue, red, yellow and many others. The RGBW LED also has a white SMD LED variant, which stands for Red Green Blue and White. In the case of white SMD LEDs, a different shade of white can be seen depending on the specific source. The colour temperature of white, which can be warm, cool or neutral, depends on a number of factors, including the bin colour of a specific LED manufacturer.
SMD LED diodes and polarity
SMD LED polarity identifies the specific polarity of each LED module. The SMD LED diodes must respect the polarity and the operating voltage in order for the device to work correctly.
LEDs are formed by the presence of two pins, anode (+) and cathode (-), which mark a different polarity. On some types of LED, symbols can be found on the housings that specify the polarity of the chip.
The SLIM range of SMD LEDs
SLIM works with third-party companies to supply high-quality SMD LEDs. Among these companies is Luxelt, with the design and development of PCBs with high luminous efficiency and low power consumption SMD LEDs. These latest-generation SMD LEDs are used to develop customised lighting solutions for a variety of application areas, with particularly interesting projects in the HO.RE.CA, professional coffee machine and food equipment sectors.
Would you like to discover the collaborations that have led to the design and development of customised solutions with LED technology? Click on the button below and download the free document on SLIM's success stories!
All these numbers! What's going on?
Have you ever been looking for LED light strips and ran across the numbers , , or ?
These numbers are less mysterious than you might think.
First off, you might have seen the letters "SMD" preceding these enigmatic numbers. The abbreviation SMD refers to a 'Surface Mounted Device'. That means this is an LED Chip (device) mounted directly to a light strip, without using wires. This surface mounting technology is indeed what makes LED Light Strips possible. The numbers after the SMD simply refer to the physical size of the LED Chip. Take SMD for example, they are 3.5mm wide and 2.8mm long. Note that size is not proportional to output or performance, and it is not the only difference between LED chip types.
SMD
SMD Chips are perhaps the most common of all LED light strip chips. They are the least bright and least power-intensive of the three chips we use at HitLights, and are most commonly used for accent lighting, such as above kitchen cabinets and around the crown molding below the ceiling.
chips used to be featured in our Luma5 strips, but those now primarily use lower output chips which offer the same brightness of chips but with greatly improved efficiency and lifespan. You can shop our selection of Luma5 strips here.
SMD
SMD Chips are just barely behind the chips in popularity. These chips are 5.0mm x 5.0mm. chips are typically 3 times as bright as chips. Because they're brighter, strips with chips are typically used for what we call 'task lighting', and commonly used underneath kitchen cabinets where that light will help you see what you're working on. strips are often also available in color changing styles, meaning that you can select any color you want with a remote or controller.
chips used to be featured in our Luma10 strips, in both the single color and multicolor versions. You can shop our selection of Luma10 RGB kits here.
SMD
SMD Chips look very much like chips, but they use newer technology and are typically much more efficient. This means that for equivalent power, they can be much, much brighter. They're smaller than the chips (2.8mm x 3.5mm). They make the ultimate in task lighting and even work lighting.
High output chips are utilized in our Luma20 strips, which are the brightest (and most efficient) strips that we sell. You can shop our selection of Luma20 strips
here
.
Editor's note: As a final aside, while the Luma designations initially were associated with certain chip types (Luma5 was , Luma10 was , and Luma20 was ) with improvements in LED technology these designations quickly became invalid. Instead, our Luma designations should always refer to the number of lumens per chip - around 5 lumens per chip for Luma5, around 10 lumens per chip for Luma10, and around 20 lumens per chip for Luma20.
Now you should know the difference between the different types of LED chips on our strips.
Chip type is just one small factor in choosing the right LED light strip for your project - contact us to get support on lighting any project:
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