According to Guinness, the world’s oldest light bulb “bulb cam” is 112 years old, this long-lived bulb is an old carbon lamp only 4 watts, it was installed in a fire station in Livermore, California in 1901. In the past over a hundred years, it only had a rest for 22 minutes in the way of “moving house”. The light’s longevity has baffled scientists. Nobody knows how it’s possible.
It’s a high-quality bulb. Unfortunately, today millions people have to use poor quality light because the manufacturer wants you to buy light every month.
My last bulb just lasts one month.