The average lifespan of light bulbs sold by Bulbs.com varies significantly depending on the type of bulb. Incandescent bulbs generally have a shorter lifespan, typically lasting around one thousand hours. In contrast, compact fluorescent lamps (CFLs) can last anywhere from seven thousand to fifteen thousand hours, while light-emitting diodes (LEDs) often boast an impressive lifespan of fifteen thousand to fifty thousand hours. These estimates are affected by usage conditions, such as the frequency of on and off cycles, the bulb's wattage, and the environment in which the bulb operates. It is advisable for consumers to consider their lighting needs and preferences when selecting a bulb. Additionally, Bulbs.com provides detailed specifications and lifespan information for each product on their website. This information can be very beneficial in making an informed choice.