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3mm Red LED (Pack of 10) A Red light-emitting diode (LED) is a semiconductor light source. LED's are used as indicator lamps in many devices and are increasingly used for other lighting. It looks like a white led and illuminate's blue light. When a light-emitting diode is switched on, electrons are able to recombine with holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the colour of the light (corresponding to the energy of the photon) is determined by the energy bandgap of the semiconductor.
| Colour | Red |
|---|---|
| Optical Component | LED |
| LED Size | 3mm |
| Dimensions | 3 x 2 x 1cms |
| Weight | 5 grams |
The forward voltage is 1.8–2.2V, suitable for 3.3V and 5V microcontroller circuits.
Yes, they are fully compatible with Arduino, Raspberry Pi, and other GPIO-based microcontrollers.
It has a viewing angle of 30–45 degrees, ideal for indicator and display applications.
Yes, always use a 220Ω resistor with 5V supply to limit current and prevent damage.
Shop 3mm Red LEDs (Pack of 10) - Compatible with Arduino, Raspberry Pi. Forward voltage 1.8–2.2V. Buy now in India.
