How old are you in hours?

OK, no calculators please. For starters there are 8,760 hours in a year (24 x 365). Oh, and a few more hours in a leap year, just to be mathematically correct. So, if you are 30 years of age, you are 262,800 hours old on your 30th birthday at the same time of birth. Of course, we rarely if not ever talk about our age in hours. But in light bulb life, we definitely do! Here are some typical life ratings of various lamps:

Incandescent – about 1,000 hrs.

Halogen – about 2,ooo to 3,000 hrs.

Fluorescent – about 20,000 to 30,000 hrs plus.

Compact fluorescent – about 10,000 to 15,000 hrs.

LEDs – typically 25,000 to 50,000 hrs.

Lamp manufacturers publish life ratings which really mean typically that at the average rated life (published life) of a light source, about half of the lamps will have failed. With LEDs, it may mean that at rated life, you have lost enough light output to consider changing them to new ones even though they most likely will continue to operate many hours more. So, let’s put this in perspective.

For the typical homeowner, a light bulb is used about 3 hrs per day or about 1,095 hours per year. So, if an LED light bulb has a rated life of 25,000 hours it should give you about 22.8 years of service. Compare this to a standard incandescent bulb that would give you only about a year of service. Starting to get the picture? We have not even touched on the fact that LEDs consume much less electricity which is your biggest cost of light factor. 

So, when considering switching to LEDs……do the math and make the decision for yourself. And if you ARE 30 years of age, when someone asks your age…….just say 30 instead of 262,800 hours. Why confuse the matter! 


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