Which type of light bulb is most energy efficient?
Then, are LED bulbs the most energy efficient?
The more lumens, the brighter the light. The LED bulbs require much less wattage than the CFL or Incandescent light bulbs, which is why LED bulbs are more energy-efficient and long lasting than the other types of bulb.
Subsequently, one may also ask, how do I choose an energy efficient light bulb?
To find a new more efficient bulb with that amount of light you should look for lumens not watts. Watts are simply a measure of energy is used, the amount of electricity a bulb needs to operate. The light output or brightness of the bulb is actually measured in lumens. More lumens, mean more light.
A 100% efficient light bulb would convert all the electricity to light and not produce any heat at all. Explain that an LED is 90% efficient, a compact fluorescent bulb is 85% efficient, and an incandescent bulb is only 10% efficient.