5mm Pre-wired Diffused LED — 20cm - 12V
Red / Single - ($0.99 ea) / 12V
$0.99 NZD
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$0.99 NZD
5mm Pre-wired Diffused LED — 20cm - 12V
Stock amount:
Tax included. Shipping is calculated at checkout.
Urban $40
Rural $60
Pre-wired 5mm diffused LEDs with a built-in current-limiting resistor — connect directly to a 12V DC supply and they light up instantly. No resistor calculations or external components required.
- Built-in resistor matched for 12V
- 20cm pre-tinned lead wires
- Heat shrink protected solder joint
- Wide-angle diffused lens
- Six colours available
Ready To Connect
The resistor is already soldered inside the heat shrink tubing near the LED, making these ideal for automotive electronics, CCTV installations, alarm panels, caravan wiring, and any 12V DC indicator application.
Please note: Each LED is sold individually. Choose your colour from the variant dropdown.
Specifications
LED Size5mm
Lens TypeDiffused
Operating Voltage12V DC
Forward Current~20mA max
Viewing Angle160–180°
Wire Length20cm
Wire ColoursRed (+) / Black (−)
LED ColoursRed, Green, Yellow, Orange, White, Blue
Life Rating100,000 hours
Operating Temperature−40°C to +85°C
Package TypeThrough-hole pre-wired LED
Please note: The built-in resistor is matched specifically for 12V. Do not use on supplies above 12V.
How To Connect
Wire Polarity
Red wire → Positive supply (+12V DC)
Black wire → Ground / negative (−)
Where It Fits
Suitable for automotive electronics, CCTV cameras, alarm panels, LED drivers, caravan and marine wiring, and any regulated 12V DC supply. The built-in resistor handles current limiting automatically — no extra components required.
Please note: Reverse polarity won't damage the LED but it won't light up. Voltages above 12V will shorten LED life.
Common Uses
Automotive dashboard indicators
CCTV and security panel lights
Alarm and switchboard indicators
Caravan, RV, and marine wiring
12V control panels and consoles
Model, diorama, and miniature lighting
Please note: These LEDs are polarity-sensitive and will not illuminate if wired backwards.
Common Questions
Do I need an external resistor?
No — the resistor is built into the wiring under the heat shrink tubing, matched specifically for 12V operation.
Can I use these with an Arduino or 5V supply?
No — these are designed for 12V only. For Arduino, ESP32, and Raspberry Pi GPIO use, choose our 5V pre-wired LED variant instead.
Will it work in a 12V vehicle?
Yes — automotive electrical systems typically sit between 12V and 14V, which is well within these LEDs' tolerance.
What happens if I wire the polarity backwards?
The LED simply won't light up. Switch the red and black wires around and it will work normally.
Are these diffused or clear LEDs?
Diffused — they produce a softer, wider-angle glow rather than a focused beam, which makes them easier to see from multiple angles as an indicator.
Please note: Each LED is sold based on the quatlity selected unless otherwise stated.