A convenient pack of 20 assorted 5mm LEDs with built-in resistors — no need to calculate or add external current-limiting resistors. Simply connect to 3.0–5.0V and you're ready to go, making these perfect for quick prototyping, breadboard experiments, and beginner projects.

The pack includes five LEDs in each of four colours (blue, red, green, and yellow), all packaged in reusable ESD-safe bags to protect them until you're ready to use them.

Key Features

• Built-in Resistor – No external resistor needed; prevents accidental burnout
• 3.0–5.0V Operating Range – Works directly with Arduino, Raspberry Pi GPIO, and standard breadboard power
• Four Colours – Blue, red, green, and yellow (5× each)
• 5mm Standard Size – Fits standard LED mounts and breadboard holes
• ESD-Safe Packaging – Reusable anti-static bags for safe storage

Ideal For

• Breadboard prototyping and quick circuit builds
• Arduino and microcontroller indicator lights
• Electronics education and beginner projects
• Status indicators in enclosures and panels

Package Contents

• 5× Blue 5mm LEDs (with built-in resistor)
• 5× Red 5mm LEDs (with built-in resistor)
• 5× Green 5mm LEDs (with built-in resistor)
• 5× Yellow 5mm LEDs (with built-in resistor)