5mm Round Top Diffused Cool Clear White LED - Ultra Bright

The 5mm round top diffused cool white led is one of the most popular sizes out there for a large percentage of projects and products.

In stock

SKU
5MMDIFFUSEDROUNDTOPLEDWHITE
Color
Cool / Clear White
Size
5mm Round Top Diffused
$0.24
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Description / 5mm Round Top Diffused Cool Clear White LED - Ultra Bright

The 5mm Diffused Cool White LED has a diffused lens that scatters light evenly in all directions, eliminating the visible bright point that clear-lens LEDs produce. The result is a soft, uniform glow — the LED looks like it is emitting light from the entire lens surface, not from a single point inside. This is the right choice when the LED will be visible to the eye or shining through a translucent material.

Cool white provides a clean modern look for contemporary model structures and general-purpose diffused indicators.

Size5mm (T-1 3/4)
Forward Voltage3.0-3.4v
Brightness10,000-13,000mcd
Viewing AngleDiffused
LensDiffused
PackageT-1 3/4 through-hole DIP
Drive Current20mA typical

Why diffused instead of clear?

Clear-lens LEDs produce a focused, directional beam with a visible bright die point — great for signals and flashlights, but inside a translucent prop, model building, or LEGO brick, that bright point looks wrong. Diffused LEDs scatter the light so the entire lens glows evenly. The rule: use clear for focused/directional, use diffused for glow/ambient.

Common applications

  • LEGO lighting mods: LEGO building interiors (modern/commercial look). The diffused lens produces a smooth glow through translucent LEGO bricks — no visible point source. Used by Brickstuff, Light My Bricks, and BriksMax kit builders. Clear for headlights, diffused for everything else.
  • Cosplay and prop lighting: LEGO building interiors (modern/commercial look), model railroad station platforms, night light builds, photography light painting. Behind translucent materials (resin, Worbla, frosted acrylic), the diffused output creates a natural “the object is glowing” effect.
  • Model railroad building windows: A diffused LED inside a model structure illuminates the whole interior evenly — no “flashlight shining out” effect. 5mm fits HO and O scale structures.
  • Warhammer and miniature wargaming — plasma weapon glow, power sword energy, eye lenses, terrain braziers and fire effects. Diffused LEDs are strongly preferred among miniature painters and terrain builders for realistic glow effects.
  • Night lights and accent lighting: Inside 3D-printed enclosures, frosted glass, or resin castings for a gentle ambient glow. The diffusion prevents harsh glare.
  • Aquarium moonlighting: Blue diffused LEDs provide soft lunar simulation for nighttime viewing without stressing fish or promoting algae.
  • Photography light painting: Diffused LEDs produce smooth, creamy light trails in long-exposure photography. Clear LEDs create trails with a bright core.

Standard T-1 3/4 through-hole footprint. Fits all 5mm LED holders, bezels, and panel-mount clips.

Resistor quick reference (20mA):
SupplyResistorRating
5V100Ω1/4W
9V300Ω1/4W
12V470Ω1/4W
15V*620Ω1/2W
18V750Ω1/2W

*Use 15V instead of 12V for vehicle/alternator sources to account for charging voltage (13.8–14.4V).

Full LED Resistor Calculator → for other voltages, series strings, and parallel configurations. Or skip the math with our 20mA Current Limiter (2–45V DC).

Frequently Asked Questions

Choose diffused when the LED will be visible to the eye or shining through a translucent material (LEGO bricks, resin props, model building windows). The frosted lens eliminates the harsh bright point that clear LEDs show, creating a natural glow effect instead.
Diffused LEDs have slightly lower peak forward intensity (measured in mcd) because the light is scattered across a wider angle. However, total light output is the same — it is just distributed more evenly. For indicator use where you look directly at the LED, the perceived brightness is comparable.

DC power recommended: LEDs are designed for DC. Running on AC will cause flickering and reduce lifespan. If you're using a low-voltage AC source — such as a model railroad transformer output or DCC track voltage — convert it to DC first with a bridge rectifier.

Also available: 3mm (smaller) · 8mm (larger)

Sold individually (1 LED per quantity ordered).

PCB Design: KiCad footprint: LED_THT:LED_D5.0mm (built-in with KiCad). EasyEDA: search “LED_D5.0mm” in the built-in library. Download KiCad files ↓

Specifications are sourced from manufacturer data and may be updated without notice. While we work to keep product information accurate, always verify critical parameters against the manufacturer's datasheet for production designs. Found an error or discrepancy? Let us know — we genuinely appreciate the correction.

More Information

Size 5mm Round Top Diffused
Color Cool / Clear White
Luminosity/Brightness 10,000-13,000 mcd
Forward Voltage 3.0-3.4v
Current 20mA
Wavelength N/A
Viewing Angle Diffused
Mount Style Through Hole (DIP)
Lens Color Diffused In Emitting Color
LED Brightness Class Super/Ultra/Extreme
Documentation Link Documentation: 5mm Diffused Round Top White LED Datasheet / Specifications

Customer Images

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