A light-emitting diode (also called LED), is an electronic component that has the particularity of emitting light when it is traversed by an electric current. Its second feature is that the current only passes through this component on one side, when the current passes to the other side, it is blocked and the LED does not light up. LEDs are energy-efficient and durable. It is no wonder that they are quite popular among a variety of products on the market today. Basically, an LED is a low current light source. A 230 Volt LED always has a built-in converter (driver) from 230V to the 12-24 Volts that the diode uses. In addition to the individual LEDs for your projects, we also have a very wide range of LED products. At Botland.store, you will find a large selection of items such as color 8mm LED diodes, LED backlight modules, LED stripes, and many more.
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Step-Down Voltage Regulator D24V25F9 - 9V 2,5A - Pololu 2854
Index: PLL-03158
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Step-Down Voltage Regulator D24V22F6 - 6V 2,5A - Pololu 2859
Index: PLL-04979
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Step-Down Voltage Regulator D24V25F7 - 7,5V 2,5A - Pololu 2853
Index: PLL-03157
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LEDs
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Set of 5mm LEDs - justPi - 16pcs.
A set of LEDs in a 5 mm DIP housing. It contains as many as 16 diodes in 4 colours - 5 pieces of red, 5 pieces of green, 5 pieces of yellow and 1 piece of blue diode. The...
Index: JUS-19992
Index: JUS-19992
Set of 5mm LEDs 10pcs with resistors
Set of ten 5 mm LEDS with resistors. The kit includes: 10 PCs resistors 1.2 kΩ and 3 PCs green, red and yellow LEDs and 1 blue LED.
Index: LED-04663
Index: LED-04663
Set of 5mm LEDs - justPi - 30pcs.
A set of LEDs in a 5mm DIP housing. It contains as many as 30 diodes in 3 colours - 10 pieces in red colour, 10 pieces in green colour and 10 pieces in yellow colour....
Index: JUS-19985
Index: JUS-19985
Module with red LED, fitted with Grove connectors is ideal for working with Arduino. The LED turns on, when the signal pin goes into high state. In addition, on the board...
Index: SEE-11346
Index: SEE-11346
Index: LED-13606
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LED 5mm white cool clear - 5pcs
5mm cold white LED . Transparent lens. Price per 5 pieces .
Index: LED-03705
Index: LED-03705
Set of 5mm LED - 160pcs with resistors + organizer
The kit consists of 160 PCs of 5 mm LEDs: 50 of yellow, red and green elements and 10 LEDs in blue color. The kit also includes: 200 pieces of resistors and a handy organizer
Index: LED-11552
Index: LED-11552
A set of 250 additional elements for the FORBOT Master of Electronics set
The set consists of additional LEDs, buttons, potentiometers and resistors . The electronic components have been sorted into the described string bags. Additional elements...
Index: FOR-19931
Index: FOR-19931
Set of 10 pieces of red LEDs. The diameter of the lens is 5 mm. The diodes emit radiation in the visible light range. The LEDs are designed for THT (through hole) mounting....
Index: JUS-19995
Index: JUS-19995
5mm 12V LED with resistor and wire - red
5mm red LED with attached resistor and 20cm long cable. It is powered by 12 V DC. Price for 5 pcs.
Index: LED-04754
Index: LED-04754
IR transmitter from Grove, emitting light with a wavelength of 940 nm. It works with a supply voltage from 3.3 V to 5.0 V. Sensor provides a signal to a distance of 10...
Index: SEE-04418
Index: SEE-04418
LED 5mm yellow - 10pcs. - justPi
Set of 10 pieces of yellow LEDs. The diameter of the lens is 5 mm. The diodes emit radiation in the visible light range. They are designed for THT through-hole mounting. The...
Index: JUS-19993
Index: JUS-19993
LED 3mm yellow - 10pcs. - justPi
Set of 10 pieces of yellow light-emitting diodes (LEDs) with a lens diameter of 3 mm. It emits radiation in the visible light range. It is designed for THT through-hole...
Index: JUS-19988
Index: JUS-19988
Grove - Multi Color Flash LED v1.1 - Seeedstudio 104030014
Module with flashing LED and built-in resistor. It is powered by 3.3 V and 5 V. The LED on the PCB can be bent to adjust the light angle. Grove connector enables easy...
Index: SEE-15426
Index: SEE-15426
- On sale!
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5mm 12V LED with resistor and wire - yellow
5mm yellow LED with attached resistor and 20cm long wire. Powered by 12 V DC. Price for 5 pcs .
Index: LED-03721
Index: LED-03721
LED 3mm green - 10pcs. - justPi
A set of 10 pieces of light emitting diodes (LED) in green , with a lens diameter of 3 mm. The LED is the most popular diode. It emits radiation in the visible light range....
Index: JUS-19987
Index: JUS-19987
Set of 3mm i 5mm LEDs - justPi - 375pcs. + box
The LED set in 3mm and 5mm DIP housing contains up to 375 diodes . Each colour comes in quantities of 50 diodes (3mm) and 25 diodes (5mm). The diodes are supplied with...
Index: JUS-19996
Index: JUS-19996
IR transmitter VSLB3940 3mm 940nm
Infrared transmitter in a 3 mm threaded housing. Emitted wavelength 940 nm.
Index: LED-00869
Index: LED-00869
Index: LED-01138
Index: LED-00440
Index: LED-04537
LED 5mm green - 10pcs. - justPi
Set of 10 pieces of green LEDs. The diameter of the lens is 5 mm. The diodes emit radiation in the visible light range. They are designed for THT through-hole mounting. The...
Index: JUS-19994
Index: JUS-19994
LED 5mm blue - 10pcs. - justPi
Set of 10 pieces of blue LEDs. The diameter of the lens is 5 mm. The diodes emit radiation in the visible light range. They are designed for THT through-hole mounting. The...
Index: JUS-19991
Index: JUS-19991
Index: LED-00231
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If you are unsure which one you need, do not hesitate to contact us!
From power to light: How LED works
An incandescent lamp lights up because a filament is heated by electrical energy. An LED bulb lights up because electrical energy is directly converted into light energy. Therefore, LED bulbs don’t get nearly as hot as incandescent bulbs. LED means Light Emitting Diode. An LED is a semiconductor. In fact, a diode is the simplest form of a semiconductor.
Semiconductors are a special material that is contaminated so that one side is negatively charged and the other is positively charged. Or put another way: one side has an excess of electrons, while the other side has holes in which the extra electrons can fall. In the LED, the semiconductor is made of a special material - typically gallium arsenide - that releases particles called photons, when the electrons fall into a hole. When you power an LED, the electrons move, falling into the holes and emitting light. Depending on the production technology used and the semiconductor materials, LEDs can emit light in many different colors: red, green, yellow, orange, and blue.
LED lights in all colors
There is a reason why the first LED lights were red. Because the easier the electrons fall into the holes, the lower the frequency, and red light has the lowest frequency of all visible light. It is much harder to make blue light with LEDs because blue light has a high frequency.
LEDs only emit light with one specific frequency, so how is it possible to make white light with LEDs? To achieve this, it’s necessary to put blue, green, and red LEDs together so that the mixed light turns white. Or you can lubricate a blue LED with a phosphorescent material. When the blue light hits the material, it emits yellow light. Blue light with a yellow light gives white light.
The history of the LED
The LED is not a new invention. As early as the beginning of the 20th century, the English experimental physicist HJ Round worked at Marconi Labs with light-emitting semiconductor materials, and around 1924-26, the Russian Oleg Vladimirovich Losev succeeded in developing the first LED. It was not until 1965 that the first LED was developed for mass production. It emitted visible, red light and was developed by Nick Holonyak Jr. at General Electric. Nick Holonyak is today considered the "father" of LEDs. In terms of lighting, however, the breakthrough came when the Japanese Shuji Nakamura developed an LED that emitted something reminiscent of white light. It came on the market in 1993.
Since the 1960s, LEDs have become more and more efficient, and historically, every three years, the light output of the same electric current through the diode has doubled. The result is that the diodes today shine brightly enough that they can be used as light sources in many different types of lamps. A particularly advantageous relationship between energy consumption and light output means that there is great political and industrial interest in using LEDs as light sources. Currently, LEDs are 5-6 times as energy-efficient as ordinary incandescent lamps and thus on a par with energy-saving bulbs - the so-called A-bulbs. Today, LED bulbs are used in a wide variety of different forms of lighting and are available both for decorative lighting and for lighting indoors as well as outdoors.
Buy high-quality LEDs at best prices
Botland.store offers a wide variety of high-quality LEDs. In this section, you can find red, green, yellow, blue, white LEDs, as well as Gravity modules with LED diodes, sets of LEDs with resistors, LEDs in holders, and many more! If you are looking for a LED diode, but you don’t know which one to choose, please contact us. Our customer service workers will do their best to find a solution that meets your expectations.