This is Energy Efficient Light Bulb Comparison video. This video shows the comparison energy used of three kinds of Light Bulb. Light Bulb that are compared in this video are standard Light Bulb, Compact Fluorescent Lamp, and LED light bulb.

In this video, the power of three kinds Light Bulb are compared by multiplying the voltage with the current. To measure the voltage and and the current, a multimeter are used. In this video, the voltage of standard Light Bulb, Compact Fluorescent Lamp, and LED light bulb is same, 124.5V. The current of standard Light Bulb is 0.505A, so the it need power of 62.87 watts. Compact Fluorescent Lamp has a current of 0.112A, so it needs 13.94 watts of power. And LED light bulb, the current is 0.030 and the power needed is 3.74. From that value, we can see the most efficient light bulb in using the energy. The most efficient is LED light bulb. The second is compact Fluorescent Lamp. The last is standard light bulb.