Understanding life ratings of light bulbs.

OK, you see a life rating on a light bulb (Lamp) to be 2,000 hours. What does that actually mean?

Lamp manufacturers typically rate life of Lamps as an “Average Rated Life” which means that at the rated life approximately 50% of the Lamps should still be operating. Some may fail earlier, some may last longer. It is a bell curve that is referred to as a mortality curve. Most of us do not relate to hours as easily as we relate to human age which is typically expressed in years. So, look at it this way….. a year is actually 8,760 hours (365 days x 24 hours). OK, ok…..a leap year has a 24 more hours…….just to be mathematically correct.

So, if you are 30 years of age you are actually 262,800 hours old on your 30th birthday at the same time of birth. Yikes! Let’s not remind ourselves. Now, if a Lamp has an average rated life of let’s say 3,000 hours such as maybe a halogen Lamp……then after those 3,000 hours about half of them will still be operating. If the lights are on for approx. 3,000 hours per year (or about 8 hours per day), then you will get about a year’s worth of light before they fail and need to be replaced. If you replaced that same Lamp with a 25,000 hour LED lamp, you will get about 8.3 years of average life. LEDs can deliver anywhere from 25,000 to 50,000 hours of life approximately. Now, that’s exciting!

Many typical household LED lamps state on the package that they will provide over 22 years of average life! The typical household usage of a light bulb is only about 3 hours per day or 1,095 hours per year. So, do the math! By the way, LEDs also dramatically reduce your electrical consumption since they use much less wattage than standard light sources and provide similar light output and color quality that you are used to. Are LEDs looking more appealing to you now? We think so.

See our family of LED Lamps available for purchase.¬†You’ll be glad you did.

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