3mm Round Top RGB Slow Auto Change LED - Ultra Bright
In stock
- SKU
- 3MMROUNDTOPLEDRGBSLOW
- Color
- Red/Green/Blue (RGB)
- Size
- 3mm Round Top Clear
- Buy 50 for $0.21 each and save 5%
- Buy 100 for $0.20 each and save 9%
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- Buy 500 for $0.18 each and save 18%
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Description / 3mm Round Top RGB Slow Auto Change LED - Ultra Bright
The 3mm Red/Green/Blue (RGB) LED (Round Top, Clear) is the standard through-hole LED for automatic RGB color cycling (slow transition) — no controller needed, just apply power. Clear lens with a focused 20-30 Degrees beam — bright and directional, the classic DIP LED that fits every breadboard, panel bezel, and holder on the market.
The 3mm (T-1) head is the compact choice — fits smaller enclosures, 1590A/1590B pedal boxes, and scales realistically for HO and N gauge model railroad signals and indicator positions.
Self-cycling at slow speed — no controller or programming needed.
| Size | 3mm (T-1) |
| Forward Voltage | 3.0-3.4v |
| Brightness | 5,000-8,000mcd |
| Viewing Angle | 20-30 Degrees |
| Lens | Clear — focused beam |
| Package | T-1 through-hole DIP |
| Drive Current | 20mA typical |
Common applications
- Eye-catching displays: Auto-cycling RGB that transitions slowly and smoothly through red, green, blue, and blended colors. Perfect for attention-getting retail displays, trade show demos, and event decorations.
- Cosplay and prop accents: Color-shifting energy cores, magical artifacts, sci-fi tech panels. No controller board needed — simplifies wiring inside costumes.
- Arcade cabinet attract mode: Color-cycling accent lighting that draws players to the cabinet.
- Holiday and seasonal displays: Multi-color accent without programming.
- Children's projects and gifts: Mesmerizing color show from a single LED + battery. Great for science fair and STEM demos.
Standard T-1 through-hole footprint. Fits all 3mm LED holders, bezels, and panel-mount clips. Add a current-limiting resistor matched to your supply voltage — see our LED Resistor Calculator for the exact value.
Need a wider beam? See our 3mm Diffused Round Top LEDs (soft glow, no hotspot) or Diffused LEDs for soft glow applications.
Frequently Asked Questions
Also available: 1.8mm (smaller) · 5mm (larger)
Sold individually (1 LED per quantity ordered).
More Information
| Size | 3mm Round Top Clear |
|---|---|
| Color | Red/Green/Blue (RGB) |
| Luminosity/Brightness | 5,000-8,000 mcd |
| Forward Voltage | 3.0-3.4v |
| Current | 20mA |
| Wavelength | N/A RGB Auto Slow |
| Viewing Angle | 20-30 Degrees |
| Mount Style | Through Hole (DIP) |
| Lens Color | Clear |
| LED Brightness Class | Super/Ultra/Extreme |
| Documentation Link | Documentation: 3mm Round Top RGB Slow LED Datasheet / Specifications |
Customer Images
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