led

Without any dedicated buck converter/white LED driver IC, you can safely drive many standard Hi-efficieny white LED modules using the battery power available in automobiles. Here is a safe and simple white LED driver designed for 12V automobiles. In the Automobile White LED Light circuit...

Take a close look. Only the emitter and collector leads of the 2N2222 are connected. The base lead was cut off. The LED is from a string of Christmas lights and it has an integrated 100 Ohm resistor.

220 volt gerilimle led çalıştıran çok basit bir devre. Devreyi yaptıktan sonra bağlantılara dokunmamak gerek çünkü 220 volt var.