Let's take a 12 volt battery and a measured resistor with standard value (200Ω) and let's find out in which way i can connect my 4 LEDs. Here i made 3 situations. By connecting two by two LEDs, in series and in parallel! Take a good look at the numbers and the diagram and make your comparisons! I made these schematics in order to find out in which way i should connect my LEDs to my motorbike and keep my battery as soon as life longer when the engine is stop!!
