Home - Blog

LEDs circuit board: 7 things you need to know

Are you struggling to decide on a LEDs circuit board supplier? Let’s see if we can help. In this post, we cover the benefits of LED PCBs and their applications. Wne also discuss material selection and production issues. The LED board manufacturing process is difficult, and there is a lot to consider. So let’s get started.

What Is A LED PCB?

Light-emitting diodes have many advantages over standard lighting products. However, the light output of a single LED is relatively low. One way to increase the light output is to connect many LEDs to a PCB or LED circuit board.When current flows through a LED, it emits light. But as the current flow rises, so does the heat output by the LEDs. This is a problem as high temperatures reduce LED light output. Therefore manufacturers use a circuit board layer to conduct heat away from the LEDs.

LED PCB Materials

LED PCB Materials

You should carefully consider material thermal performance when choosing a LED PCB substrate.  Weight, size, and cost are also important. The substrate material options include:

FR4 PCB Raw Material

CEM-1 PCB Raw Material

CEM-3 PCB Raw Material

ic layer will perform as the conducive link between IC and heat sink. Unlike FR4. The copper and Aluminum PCB Material

Copper Core PCB Material

Ceramic Base PCB Material

Each material has good and bad points. For example, metal and ceramic have better thermal performance than laminate. CEM-1 boards are low-cost but are fragile compared to FR4 and CEM-3 substrates.

Ceramic base PCBs use materials such as Alumina. There are other materials with better thermal performance, but they cost more. A similar trade-off applies for metal core PCB materials, including Aluminum and Copper.

The Benefits Of LED PCB & The LED Lighting Industry

LED PCBs have many advantages over traditional lighting. These include:

  • Lower power consumption
  • Longer Lifespan
  • Very Compact
  • Mercury Free

You can shape lighting boards and change the color of LEDs to create interesting lighting effects.

The Application Of LED PCB

The Application Of LED PCB

The recognition of the benefits of a LED circuit board is increasing. Hence, the number of applications is also rising. Some examples are:

  • Automotive.
  • Medical.
  • Computer.
  • Telecom.
  • Military.
  • Traffic and signal lights.
  • Signs.
  • LED lights for indoor farming.

Various market forces are increasing demand. These include Improving LED technology, green energy demand, and lower cost. As a result, the forecast compound annual growth rate for the LED circuit board lighting market between 2021 and 2026 is (CAGR) 14.25%.

Using SMD Components on LED PCBs

Using SMD Components on LED PCBs

LEDs are available in surface mount and leaded packages. As Surface mount devices (SMD) are small and low profile, they are the first choice for multi-device applications.

SMD LED assembly requires a high level of manufacturing skill. Manufacturers must fit LED circuits and circuit board accessories on a small PCB. Hence, LED lighting board production requires picking and placing equipment.

The process involves printing solder paste onto solder pads on the PCB. The next step is to place surface-mount LEDs on the solder pads. Heat is then applied to form a solder joint.

The placement accuracy of the LED component is important. Also, the solder paste must be level and within a specified thickness. To prevent damage to the LED device, control of the heat applied is critical.

Aluminium LED Circuit Boards

Aluminium LED Circuit Boards

Printed circuit boards build involves laminating four layers of material. They are a silkscreen, solder mask, copper layer, and a substrate.

Manufacturers attach SMD LEDs to the surface of a PCB. As they pack many SMD devices into a small area, this increases the heat. Therefore, a LED PCB board uses a metal substrate to transfer heat away from heat-sensitive LEDs. This substrate is electrically insulated from the circuit by a dielectric material.

things that you need to consider when determining the best layout. Options such as Aluminum is a common choice for the metal substrate. It is durable, and its dimensions do not change when exposed to stress. Although Copper core PCB, or a mixture of specific metal alloys.
However, the Aluminum is not as thermally conductive as Copper, it is cheaper. 

Choosing A LED PCB Manufacturer

Choosing A LED PCB Manufacturer

When choosing a manufacturer, it is important to ensure they have relevant experience. The manufacture of LED PCBs is difficult. It requires surface mount processing knowledge and equipment.

  • Ability To Meet Your Requirements

Make sure the LED PCB supplier can meet your production volumes and delivery requirements. Their costs should be reasonable given the specification and quality levels.

  • A Customer/Supplier Partnership

The supplier should respond to your demands. Firstly, they should work with you to improve your LED PCB light products. And then,  they should also help you drive down costs. 

  • A Quality Manufacturer

There is a lot to consider, including the type of LED. It is important to choose your manufacturer carefully to ensure the ongoing delivery of quality products.


The advantages of LED lighting are clear and more applications are likely to switch to using LED PCBs in future. When LED circuit boards are the right choice for your application, choose your manufacturer carefully.

Heat management is important, so select the right circuit board technology. Aluminum LED circuit boards have many advantages and are a common solution. 

Find a manufacturer capable of overcoming the circuit board manufacturing challenges. They should be able to deliver a reliable product on time and at an acceptable cost.

If you have any questions, please get in touch.

Avatar photo
Emma Lu
Our professional engineering support saves our customers a lot of trouble and loss. >>>>>> After you place the order, our engineer will conduct technical reviews to make sure the parts can be mounted well/correctly on the boards. We will check if the component packages match well with the Gerber footprints, if the part numbers you provided match well with the descriptions, and if the polarity is clearly marked. >>>>> When your design is ready, please send your Gerber and BOM so we can quote and start!