How long should an aquarium light last?

Quote from darrie53

Hey folks,

I have a a light fixture that is about 3 years old that is on about 6 hours per day. I am wondering how long these stay effective? Do they have a shelf life? I am assuming they do.

Thanks!

Is your light LED, fluorescent, or incandescent light?

From my understanding, LED lights can last up to six years but incandescent lights tend to last a little less which is between 6 to 18 months.

Fluorescent lights also last around 28 months as well so it really depends on the kind of light you are using.