When to use lifespan in Korean
Korean: 수명[ su-myeong ]

When to use it
Lifespan means how long a person, animal, plant, or thing can live or work. In Korean, 수명 is often used for living things, but also for things like batteries, light bulbs, and home appliances. You can use it to talk about something having a long lifespan or a short lifespan.
Example sentences
이 전구의 수명은 길어요.
This light bulb has a long lifespan.
학교에서 태블릿 배터리 수명이 짧아요.
At school, the tablet battery life is short.
이 나무는 수명이 아주 길어요.
This tree has a very long lifespan.
아빠가 거북이의 수명이 길다고 말했어요.
Dad said that turtles have a long lifespan.
저는 수명이 긴 냉장고를 사고 싶어요.
I want to buy a refrigerator with a long lifespan.
여행 중에 휴대폰 배터리 수명이 짧았어요.
During the trip, my phone battery life was short.