Question

Why are LEDs about 99% efficient?

Answer 1

In other words, an LED's efficiencyincreases as its output power decreases. (The inverse of this relationship - that LED efficiencydecreases as its output power increases - is one of the biggest hurdles in designing bright, efficient LED lights.)

Answer 2

Here is your answer

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. Efficient

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