Discrete LEDs — 3mm, 5mm, 10mm & RGB

About

Build, prototype, and indicate with our complete range of discrete through-hole LEDs and RGB LED modules . From standard 3mm, 5mm, and 10mm single-color diffused LEDs in red, green, yellow, and blue, to full-color 5mm RGB LEDs in common cathode and common anode configurations, and WS2812B-compatible addressable RGB LED modules — every LED component for Arduino, breadboard, and custom PCB projects is here. All LEDs in this collection are supplied in multi-packs for prototyping and small production runs. Single-color LEDs are available in 3mm (compact PCB layouts), 5mm (standard breadboard), and 10mm (high-visibility panel indicators) sizes. RGB LEDs provide full-color mixing from a single component. WS2812B modules add individually addressable full-color control from a single GPIO pin. What’s in This Collection? Red LEDs — 3mm (10-pack), 5mm (10-pack), 10mm (5-pack); diffused lens; Vf ~1.8–2.2V; universal stop/error/alert indicator Green LEDs — 3mm (10-pack), 5mm (10-pack), 10mm (5-pack); diffused lens; Vf ~2.0–2.4V; universal go/ok/power-on indicator Yellow LEDs — 3mm (10-pack), 5mm (10-pack), 10mm (5-pack); diffused lens; Vf ~2.0–2.2V; universal caution/warning indicator Blue LEDs — 3mm (10-pack), 5mm (10-pack); diffused lens; Vf ~3.0–3.4V; power and connectivity indicator RGB LEDs 5mm — common cathode (5-pack) and common anode (5-pack); clear lens; full RGB color mixing WS2812B RGB LED modules — single LED and 8-bit board; NeoPixel/FastLED compatible; 24-bit color; chainable Traffic light LED module — red/yellow/green on one PCB; pre-installed resistors; for Arduino beginner projects How to Choose the Right LED Size 3mm: Compact PCB layouts, wearable electronics, space-constrained enclosures 5mm: Standard breadboard and PCB; the most versatile and widely used size 10mm: Panel indicators, control boards, high-visibility applications viewed from a distance RGB 5mm: Full-color indicator from a single component; common cathode for most Arduino circuits WS2812B module: