How to create a LED on your own

Electrical equipment

LED for cars is marketed,But I’m poor, so I makes by oneself.

Prepare the first necessary things “Soldering iron” and “LED 15mA-20mA” and “Electrical cord red black” and “9 volt battery for tests” and “CRD 15mA-20mA (Constant current diode 15mA-20mA)”


  1. ”CRD+” is connected to red cable
  2. ”CRD-” is connected to “LED+”
  3. “LED+” is connected to “Black cable”


Finally test 9 volt battery


Is no problem until the “1 of CRD” with respect to the “3 of LED”

CIMG1024 CIMG1051

Attachment to the vehicle, please refer to the Positive power supply point.

Positive power supply point
When a beginner does LED Modified of moped,It becomes the place of the positive power supply to be troubled. The easi...