When considering the energy efficiency in lighting, which type of light bulb is generally more efficient?

The most efficient type of light bulb when considering energy use is the LED light bulb. LED bulbs convert a much higher percentage of electricity into light, thus using less energy to provide the same amount of illumination compared to other types. They last significantly longer than incandescent, halogen, and even fluorescent bulbs, which reduces the frequency of replacement and associated waste.

While fluorescent light bulbs are more efficient than incandescent bulbs, they still consume more energy than LEDs and have shorter lifespans. Halogen bulbs are a more efficient version of incandescent bulbs but still do not match the efficiency of LEDs. Incandescent bulbs are the least efficient, converting only a small fraction of energy into light, with most of it lost as heat. Therefore, LED light bulbs are the best choice for maximizing energy efficiency in lighting applications.