WHY are incandescent light bulbs considered to be lower efficiency than led light?
Incandescent light bulbs are considered to be lower in efficiency than LED lights due to several reasons:
1. Heat generation: Incandescent bulbs produce a large amount of heat while emitting light. In fact, about 90% of the energy they consume is wasted as heat. This results in a low energy conversion efficiency. LED lights, on the other hand, produce very little heat, making them much more efficient in converting energy to light.
2. Energy consumption: Incandescent bulbs require more energy to produce the same amount of light as LED bulbs. LED lights are highly efficient in converting electrical energy into visible light, using less energy for the same level of brightness.
3. Lifespan: Incandescent bulbs have a relatively short lifespan, typically lasting around 1,000 hours. In contrast, LED lights have a significantly longer lifespan, typically lasting between 25,000 to 50,000 hours. The longer lifespan reduces the need for frequent replacements, making LED lights more energy-efficient in the long run.
4. Technology: Incandescent bulbs work by passing an electric current through a filament, which emits light as it heats up. This method of light production is less efficient compared to LEDs, which use semiconductors to generate light when electrons pass through them.
Due to these factors, LED lights have become increasingly popular as they offer higher energy efficiency, longer lifespan, and reduced environmental impact compared to incandescent bulbs.