5mm 12v Pre-Wired Blue LED - Ultra Bright (10v, 11v, 12v, 13v, 14v, 15v)

The 12v 5mm blue pre-wired LED makes it almost the easiest way to add light nearly any project.

In stock

SKU
12V5MMPREWIREDBLUE
Color
Blue
Size
5mm Pre-Wired Round Top
$0.48

Description / 5mm 12v Pre-Wired Blue LED - Ultra Bright (10v, 11v, 12v, 13v, 14v, 15v)

The 5mm 12V Pre-Wired Blue LED ships ready to install with Approximately 15cm (6 inches) leads and a built-in current-limiting resistor. Connect directly to model railroad 12V accessory bus, automotive 12V system, RV house battery, marine 12V bus, or 12V DC power supply — no resistor calculation and no extra components needed. A crisp blue for automotive accent lighting, cb/ham radio meter backlighting, pc case mods, and marine cockpit courtesy lights.

Blue is the most popular color for CB radio S-meter upgrades (Cobra 29, Uniden Bearcat) and automotive interior accent modernization.

The 5mm (T-1¾) head is the most popular standard DIP size. Fits all standard 5mm LED holders, bezels, and panel-mount clips. Versatile for model railroad structures, automotive, RC vehicles, and panel indicators.

Size5mm (T-1 3/4)
Operating Voltage10V – 15V DC (10V, 11V, 12V, 13V, 14V, and 15V)
LED Forward Voltage10v-15v (volts) (15v Not Recommended Continuous)
Drive Current20mA typical
Brightness12,000-14,000mcd
Viewing Angle20-30 Degrees
WireApproximately 15cm (6 inches) leads, heat-shrink protected connections
ResistorBuilt-in — no external resistor needed

Designed for

  • Model railroad layouts: Wire directly to your 12V accessory bus — no resistor math, no external components. 5mm head works at HO (1:87) and O (1:48) scale. DCC and DC layouts alike.
  • Automotive and motorcycle: Dashboard indicator relamp, footwell accent, instrument cluster backlight — connects directly to 12V vehicle electrical. Classic CB radio S-meter upgrade.
  • RV and camper van: Dome light accent, reading light, porch light indicator — runs directly off your 12V house battery with no extra wiring.
  • Marine and boat: Panel indicators for bilge pump, battery switch, and blower status. Note: these LEDs are not waterproof — mount in a protected location or inside a sealed enclosure.
  • RC crawlers and scale vehicles: Headlights, taillights, and turn signals for Traxxas TRX-4, Axial SCX10, and 1/10 scale truck bodies. Direct-compatible with 7.2V–14.8V LiPo packs.
  • Arcade cabinets and pinball: Illuminated pushbuttons (Sanwa/Seimitsu) from JAMMA 12V supply. Also backbox and playfield accent lighting for pinball restorations.

Wiring

Red wire = positive (+). Black wire = negative (−). Reversing the wires will not damage the LED, but it will not light. Factory leads are Approximately 15cm (6 inches) leads with heat-shrink protected joints. For wiring tips, extending leads, and connecting multiple LEDs, see our Pre-Wired LED Voltage Guide.

Which voltage do I need?

Not sure which voltage tier matches your power source? See our complete Pre-Wired LED Voltage Guide — covers automotive, model railroad, USB, Arduino, Christmas village, guitar pedal, and battery-powered projects with a quick-reference table.

Department 56 village accessories use 2.5–3V adapters, which are below the operating range of these pre-wired LEDs.

Complete your project

Frequently Asked Questions

Yes — wire them in parallel (positive to positive, negative to negative). Each LED has its own built-in resistor. Do not wire them in series (daisy-chain), as the voltage drops will compound.
Strip 1/4 inch of insulation, twist matching wires (red to red, black to black), solder, and cover with heat-shrink tubing. Use 24-26 AWG stranded hookup wire for extensions.
Not directly — DCC track power is modified AC, not DC. Connect pre-wired LEDs to the 12V DC accessory bus instead. If you must use track power, add a bridge rectifier and smoothing capacitor first.

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.

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 Pre-Wired Round Top
Color Blue
Operating Voltage 10v-15v (volts) (15v Not Recommended Continuous)
Wire Length Approximately 15cm (6 inches)
Resistor Built In Yes
Additional Resistors Required No
Luminosity/Brightness 12,000-14,000 mcd
Forward Voltage 10v-15v (volts) (15v Not Recommended Continuous)
Shrink Wrapped Connections Yes
Current 20mA
Wavelength 460-465nm
Viewing Angle 20-30 Degrees
Mount Style Custom
Lens Color Clear
LED Brightness Class Super/Ultra/Extreme

Customer Images

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5mm 12v Pre-Wired Blue LED - Ultra Bright (10v, 11v, 12v, 13v, 14v, 15v) — customer photo 1
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Great value. Fast shipping. Very nice product. This was m...
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Great value. Fast shipping. Very nice product. This was my second order. Will order again and again. Great seller!
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thanks!
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My LEDs arrived 2 days ahead of the promised day! What ca...
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My LEDs arrived 2 days ahead of the promised day! What can be bad about that? All Good!!
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as described.
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Prompt, and very fast shipping! Smooth transacion A++ seller thank you!
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Review by Ernest
These Lights are extremely bright and are suitable for most applications. Great product and company.

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