Why are incandescent light bulbs considered to be lower efficiency than LED bulbs

Incandescent light bulbs are considered to be lower efficiency than LED bulbs for several reasons:

1. Energy utilization: Incandescent bulbs produce light by heating a filament inside the bulb, resulting in only about 10% of the electrical energy being converted into light and the remaining 90% being wasted as heat. In contrast, LED bulbs use semiconductors to produce light, converting almost all of the electrical energy into light with very little wasted as heat.

2. Lifespan: Incandescent bulbs have a much shorter lifespan compared to LED bulbs. LED bulbs can last up to 25 times longer than incandescent bulbs, reducing the frequency of bulb replacements and saving on energy costs.

3. Energy consumption: The low efficiency of incandescent bulbs means they consume more energy to produce the same amount of light as LED bulbs. This results in higher electricity bills and a greater environmental impact.

4. Environmental impact: Incandescent bulbs release more greenhouse gases and other pollutants into the environment due to their higher energy consumption and shorter lifespan. LED bulbs have a lower environmental impact as they are more energy-efficient and have a longer lifespan.

Overall, the higher efficiency, longer lifespan, lower energy consumption, and reduced environmental impact make LED bulbs a more sustainable and cost-effective lighting option compared to incandescent bulbs.