As you may know, light
bulbs are an essential part of modern living. A lightbulb transfers electric energy to light energy. Alternating current is being fed to my house's power system from HECO. The electricity goes through wires in the wall and ceiling and into the bulb itself. A wire carrying current runs through the bulb, part of this circuit is tungsten. The electrons can not travel as fast in tungsten and therefore generates heat, part of which is converted to light. Though lightbulbs get the job done, much of the current used to produce light is wasted and released as heat energy.