Which of the following is NOT an advantage of fluorescent lighting?

Fluorescent lighting is known for several advantages over other types of lighting, particularly incandescent bulbs. One key reason why different wattage fluorescent bulbs are often touted for their longevity is that they can typically last much longer than incandescent bulbs, making option A a benefit. Additionally, fluorescent lights are designed to be more energy-efficient, which means they produce less heat in comparison to incandescent bulbs, aligning with option B.

Another advantage is the interchangeability of different wattage bulbs, allowing for flexibility in lighting options and making it easier to select the right brightness for a given space, as seen in option C.

The statement regarding cost, however, highlights a disadvantage rather than an advantage. While fluorescent bulbs may have a higher upfront purchase price compared to incandescent bulbs, their longer lifespan and lower energy consumption can lead to cost savings over time. Therefore, saying they are more expensive than incandescent bulbs does not reflect an advantage of fluorescent lighting, making it the correct choice for this question. This distinguishes it clearly from the other options that outline the genuine benefits of using fluorescent lighting.