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Products: 116
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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
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Regular price €0.63 Price €0.63

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
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Regular price €1.06 Price €1.06

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
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Regular price €1.06 Price €1.06

Grove - red LED

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
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Regular price €3.23 Price €3.23

LED 5mm yellow - 10pcs

LED diode 5 mm yellow. Price for 10 pieces.
Index: LED-13606
Index: LED-13606
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Regular price €0.33 Price €0.23
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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
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Regular price €3.84 Price €3.84

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
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Regular price €5.40 Price €5.40

LED 5mm red - 10pcs. - justPi

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
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Regular price €0.41 Price €0.41

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
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Regular price €1.28 Price €1.28

A set of LEDs 3mm - 30pcs. - justPi

Set of 30 pieces of LEDs in red, yellow and green . The diameter of the lens is 3 mm. The diodes emit radiation in the visible light range. They are designed for THT...
Index: JUS-19986
Index: JUS-19986
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Regular price €0.85 Price €0.85

Grove - IR transmitter 940nm

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
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Regular price €4.34 Price €4.34

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
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Regular price €0.41 Price €0.41

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
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Regular price €0.41 Price €0.41

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
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Regular price €0.65 Price €0.65
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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
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Regular price €1.28 Price €1.28

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
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Regular price €0.41 Price €0.41

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
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Regular price €5.84 Price €5.84

IR transmitter VSLB3940 3mm 940nm

Infrared transmitter in a 3 mm threaded housing. Emitted wavelength 940 nm.
Index: LED-00869
Index: LED-00869
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Regular price €0.76 Price €0.76

LED SMD0603 green - 10pcs

Led SMD 0603 green. Price for 10 pieces.
Index: LED-01138
Index: LED-01138
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Regular price €0.63 Price €0.63

LED SMD 0805 yellow - 10pcs

LED diode SMD 0805 yellow. Price for 10 pieces.
Index: LED-00440
Index: LED-00440
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Regular price €0.41 Price €0.41

LED 10mm yellow - 10pcs

LED diode 10mm yellow. Price for 10 pieces.
Index: LED-04537
Index: LED-04537
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Regular price €1.04 Price €1.04

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
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Regular price €0.41 Price €0.41

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
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Regular price €0.54 Price €0.54

LED SMD 0805 green - 10pcs.

LED diode SMD 0805 green. Price for 10 pieces.
Index: LED-00231
Index: LED-00231
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Regular price €0.63 Price €0.63

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.