Led Direction Diagram. I have used red and green leds. The above diagram shows a 3v led circuit in this circuit there are two aa cells are used.
Large led array designed for use as a street lamp. A light emitting diode led is an optical semiconductor device that emits light when voltage is applied. Otherwise the structure will not work as it ought to be.
The current flow can flow only from the anode terminal to the cathode terminal.
The circuit must provide sufficient current to light the led at the required brightness but. A massive aluminum heat sink is needed with the high wattage leds. Digging deeper into the physics there are actually two possible types of current. Large led array designed for use as a street lamp.