Name one disadvantage of using incandescent bulbs.

Incandescent bulbs are known for their relatively low energy efficiency and shorter lifespan compared to other lighting options such as LED or fluorescent lighting. The majority of the energy consumed by incandescent bulbs is emitted as heat rather than light, making them less efficient. While they do provide a warm light that many people find aesthetically pleasing, they often need to be replaced more frequently, leading to increased cost and waste over time. Therefore, the choice highlighting their inefficiency and limited lifespan accurately reflects a significant disadvantage of using incandescent bulbs in modern lighting contexts.