What defines LED bulbs compared to incandescent bulbs?

LED bulbs are highly regarded for their longer lifespan and lower heat output compared to incandescent bulbs. One of the most significant advantages of LED technology is its energy efficiency; LED bulbs can last up to 25,000 hours or more, significantly outlasting the typical 1,000-hour lifespan of incandescent bulbs. This longevity means that, over time, fewer replacements are needed, contributing to reduced waste and lower costs for users.

Additionally, LED bulbs operate at a cooler temperature than incandescent bulbs, which convert a substantial portion of electricity into heat rather than light. This lower heat output not only enhances safety by minimizing the risk of burns or fire hazards but also contributes to energy savings since less energy is wasted as heat.

In contrast, options like the first choice incorrectly state that LED bulbs are less energy-efficient and shorter-lived, misrepresenting their primary advantages. The third choice about producing more ultraviolet light is inaccurate, as LED bulbs typically emit less UV radiation than incandescent bulbs. Lastly, the fourth choice regarding a higher voltage requirement does not apply broadly, as LED bulbs can operate effectively on both low and high voltages, depending on their design and intended use.