How to create a LED on your own

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)”

”CRD+” is connected to red cable
”CRD-” is connected to “LED+”
“LED+” is connected to “Black cable”

Finally test 9 volt battery

Incidentally

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

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 easiest...