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.
Specifications
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.
Common Uses
Common Questions
No — the resistor is built into the wiring under the heat shrink tubing, matched specifically for 12V operation.
No — these are designed for 12V only. For Arduino, ESP32, and Raspberry Pi GPIO use, choose our 5V pre-wired LED variant instead.
Yes — automotive electrical systems typically sit between 12V and 14V, which is well within these LEDs' tolerance.
The LED simply won't light up. Switch the red and black wires around and it will work normally.
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.