5mm Assorted RGBY LED Diode Kit - Red, Green, Blue, Yellow Through-Hole Light Emitting Diodes for Arduino and Electronics Projects

The 5mm Assorted RGBY LED Diode Kit is an essential collection of standard light-emitting diodes designed for hobbyists, educators, and electronics engineers. This comprehensive assortment includes the four classic indicator colors—red, green, blue, and yellow—providing everything required to prototype, test, and illuminate a wide variety of DIY circuits. Whether you are building your very first blinking circuit with an Arduino, designing a custom status indicator panel for a control box, or teaching fundamental electronics principles in a classroom, these reliable diodes deliver consistent performance and bright visual output.

Each LED in this kit is manufactured using standard through-hole packaging, featuring a 5mm diffused or water-clear lens that distributes light evenly across a wide viewing angle. The semiconductor die inside each diode is optimized for high luminous efficiency at low operating currents. To ensure longevity and prevent thermal degradation, these components require an external current-limiting resistor, such as a 220-ohm or 330-ohm resistor, when operated standard 5V or 3.3V microcontroller digital outputs or direct DC power sources. Polarity identification is intuitive and foolproof thanks to the physical lead construction: the longer lead designates the positive anode, while the shorter lead indicates the negative cathode, making this assortment exceptionally well-suited for educational environments and beginner tutorials.

Emitted Colors: Red, Green, Blue, Yellow

Package Type: 5mm Through-Hole Radial

Lens Type: Colored Diffused / Water Clear

Forward Voltage: Varies by color (approx. 1.8V to 3.2V)

Forward Current: 20 mA standard continuous

Viewing Angle: Check datasheet degrees

Operating Temperature:

• 20 to 85 degrees Celsius

These versatile LEDs are fundamental building blocks for countless electronic designs. Use them as power and status indicators on custom printed circuit boards, build interactive optical displays, create multi-color mood lighting arrays, or assemble classic electronic projects like light chasers, flashing beacons, and educational traffic light models. They integrate seamlessly with microcontrollers including Arduino, ESP32, and Raspberry Pi via GPIO pins or transistor-driven switching circuits.

When integrating these LEDs into your circuit, always calculate and use an appropriate series current-limiting resistor based on your supply voltage and the specific forward voltage of the LED color to prevent overcurrent failure. Respect the anode and short cathode polarity during assembly. Store unused components in an anti-static bag in a cool, dry environment to protect the semiconductor junctions from moisture and electrostatic discharge.

Assorted 5mm LEDs (Red, Green, Blue, Yellow)