What are LEDs?

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”2/3″][vc_column_text]A LED (Light Emitting Diode) is a semi conductor light source. When an electronic current is sent through, the LED is activated and emits light. LEDs have been around for more than 40 years. First generation LEDs emitted low intensity infrared light.

In recent years LEDs have undergone important improvements. The ratio power input versus light output has increased, which has made LEDs more efficient. Additional shapes and types of LEDs have become available, which has drastically increased the number of ways in which LEDs can be used. Besides, there are more different light tones available than was the case several years ago.

LED performance is temperature dependent. LED light output rises at lower temperatures, leveling off, depending on type, at around −30 °C.

LEDs are now more widely used in a number of ways compared to several years ago.

In recent years more and more manufacturers have decided to implement LEDs in their products.

The actual LED is placed on a PCB (Printed Circuit Board). A driver is used to provide the actual power needed to activate the LED.[/vc_column_text][/vc_column][vc_column width=”1/3″][vc_images_carousel images=”153,156,154,155″ img_size=”480*320″ onclick=”link_no” autoplay=”yes” hide_prev_next_buttons=”yes” wrap=”yes”][/vc_column][/vc_row][vc_row][vc_column width=”1/3″][vc_single_image image=”65″ img_size=”246×205″ alignment=”right”][/vc_column][vc_column width=”2/3″][vc_column_text]There are different kinds of LEDs. Over the last few years LEDs have undergone tremendous development. For example, the actual light output per LED has increased and there are now many kinds of different LEDs for different applications.

Chip-on-board (COB) LEDs consist of many tiny LEDs that form a larger LED.

The actual LEDs work in conjunction with a PCB (Printed Circuit Board). The LEDs are installed either on the circuit board or the circuit board and LED are integrated (as seen in the picture above showing “individual LEDs”). There are many different kinds of PCBs for use in combination with LEDs available in the market. PCBs can be small and inexpensive but other PCBs for special applications are much larger and extremely costly.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

LEDs and heat dissipation

The way LEDs are designed results in a need for heat dissipation. If the heat generated by the driver and actual LEDs is properly dissipated (transported to the exterior), the LED benefits. The life span increases and performance of the LED is better. This is why many LED lighting products come with a heat sink.

Some examples of heat sinks:

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Manufacturers of LEDs

There are a number of manufacturers of LEDs. Some of them are companies like Bridgelux, Cree, Epistar and Philips. The characteristics and performance of the LEDs produced by each manufacturer vary.[/vc_column_text][/vc_column][vc_column width=”1/2″][vc_column_text]

Manufacturers of LED lighting products

Nowadays there are literally thousands of manufacturers of LED lighting products. Most manufacturers are based in China and a smaller number is based in Taiwan and in places outside Asia.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

Quality of components used in LED lighting products

The quality of finished LED lighting products differs per manufacturer. The quality depends on the components used and on the assembly of the components but the knowledge and experience of the manufacturer also plays a key role. Key components from a technical point of few are the LEDs, the PCB and the driver. As is the case in many different industries, if expensive and high quality components are not assembled correctly or treated properly, the final result will be less than satisfying.[/vc_column_text][/vc_column][/vc_row][vc_row full_width=”stretch_row” el_class=”green”][vc_column][vc_column_text css=”.vc_custom_1444444271164{margin-top: 25px !important;margin-bottom: 35px !important;}”]

LED lighting and the advantages of LED lighting for consumers and companies

Note: in the wording shown on this page when talking about LED lighting we are referring to LED lighting products that consist of quality components. LED lighting products that make use of low quality components provide different performance levels and do not offer maximum benefits.

Advantages of LED lighting compared to light sources such as incandescent, fluorescent and energy saving lighting:


Where are LEDs used?

There are many possible ways to use LEDs. Nowadays you’ll find LEDs in a range of products. LEDs are mostly used for indication and illumination. Some examples:

Energy saving potential of LEDs in lighting, some examples:

LED spot light:LED down light:LED high bay lamp:

LED spotlight

6W LED replaces 50W halogen

LED downlight

45W LED replaces 70W C-DMT

LED high bay

150W LED replaces 400W HID