5mm Round Top Blue - Extra Fast Flashing 6Hz LED - Super Bright

The 5mm flashing round top blue led will begin flashing as soon as you apply power to the led.

In stock

SKU
5MMROUNDTOPFLASHINGLEDBLUE6HZ
Color
Blue
Size
5mm Round Top Clear Flashing
$0.22
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Description / 5mm Round Top Blue - Extra Fast Flashing 6Hz LED - Super Bright

The 5mm Blue Extra Fast Flashing 6Hz LED blinks approximately six times per second — a rapid strobe-like pulse that reads as alarm, emergency, or dramatic effect. No 555 timer, no oscillator, no microcontroller required — just apply DC power through a current-limiting resistor and it starts immediately.

Size5mm (T-1 3/4)
Effect~6Hz (360 flashes/min)
Forward Voltage3.0-3.4v
Brightness10,000-12,000mcd
PackageT-1 3/4 through-hole DIP
Drive Current20mA typical

Built for

  • Halloween strobe effects: Rapid white flash behind a scrim for lightning simulation, or inside a prop skull/lantern for aggressive alarm. Simpler and cheaper than a dedicated strobe controller.
  • Emergency vehicle simulation: Red 6Hz for scale fire trucks and ambulance models, amber for utility/DOT vehicles. RC builds (Traxxas, Axial, Tamiya) — cheaper than MyTrickRC light bar modules.
  • Escape room alarm props: Fast-flashing red behind a translucent dome for “lockdown” or “containment breach” alert. DIY cost under $1 vs. $35+ commercial.
  • Model railroad emergency scenes: Fire truck and ambulance response on layout. White fast flash for welding sparks or electrical arcing in industrial dioramas.
  • Cosplay prop electronics: Rapid pulse for sci-fi weapon charging, cyberpunk implant blinks, robot eye flickers.

Makeshift controller trick: Wire this LED in series with standard LEDs, and the entire string will strobe together at ~6Hz. One 6Hz LED makes a bank of regular LEDs rapid-fire in sync.

Why this instead of a 555 timer? A 555 circuit could achieve this rate but requires the IC, two resistors, a capacitor, and a PCB. This LED is one component. Trade-off: fixed rate, no adjustment.

Polarity matters — long lead is positive (anode). Add a current-limiting resistor matched to your supply voltage. Drop-in replacement for any standard 5mm LED — same footprint, no circuit changes.

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

No. Self-flashing LEDs have a fixed blink rate set by the internal IC (1Hz, 2Hz, or 6Hz depending on the variant). If you need adjustable timing, use a standard LED with a 555 timer circuit or an Arduino.
Wire a self-flashing LED in series with one or more standard LEDs, and the entire string will blink together. The flashing LED acts as a current gate, controlling the pattern for all LEDs in the chain. This lets you animate multiple LEDs with a single flashing LED — no separate controller needed.
No. Animated LEDs with built-in ICs require DC power. On AC, the IC cannot function and the LED will not produce the intended effect. For AC sources, convert to DC first with a bridge rectifier.

DC power required: Animated LEDs (flashing, flickering, fading) require DC — they will not operate correctly on AC power. If you're working from a low-voltage AC source such as a model railroad transformer or DCC output, you must convert to DC first using a bridge rectifier.

Power SourceBridge Rectifier100µF Capacitor
DC power supplyNoNo
12V AC landscape transformer
Required
Required
DCC track power
Required
Required

Full wiring guide with circuit diagrams →

Complete your build

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 Clear Flashing
Color Blue
Luminosity/Brightness 10,000-12,000 mcd
Forward Voltage 3.0-3.4v
Current 20mA
Wavelength 460-465nm
Viewing Angle 20-30 Degrees
Mount Style Through Hole (DIP)
Lens Color Clear
LED Brightness Class Super/Ultra/Extreme

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Somewhat expensive, but good devices.
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Nice item! Good price! Free shipping! Thanks!

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