We all know what it's like to have a light bulb go "POP". But did you know that you'll never see an LED bulb do that? Read this LED Monkey blog to discover why, and to find out all about what's known as "LED Lumen Maintenance".

New Ways of Doing Things

Prior to the advent of LED technology, incandescent and halogen light bulbs would "burn out" when they reached the end of their life.

LED bulbs, on the other hand, are not dependent upon a white-hot tungsten filament to produce their light.

Therefore, they don’t tend to burn out. Instead, the intensity of their light output simply begins to fade over a long period of time.

What is Lumen Maintenance?

Lumen Maintenance is a measurement used to evaluate the decrease in light output of a bulb that occurs over time.

An LED bulb’s life is thought to be over when its lumens (brightness) fall below 70% of their initial intensity. This is what’s known as the LED’s L70 Rating.

Thus, the L70 measurement you’ll see on all our LED light bulbs’ packaging, informs you of the length of time you can expect it to provide a light intensity that’s similar to the day on which you installed it.

What Does The L70 Rating Mean?

To fulfil its L70-Rating, an LED bulb must maintain at least 70% of its initial lumens during its rated lifespan.

For example, an LED with an expected lifespan of 50,000 hours, should be producing 70% of the light output that it was producing when new, after being in use for 50,000 hours.

Longer Lifespan

It’s not at all unusual for an LED light bulb to reach 50,000 hours of life without losing 70% of its light efficacy. And 50,000 hours is a pretty long time for any kind of bulb to last!

Lumen maintenance curves for various light types

Indeed, an LED will outlast a CFL (Compact Fluorescent Lamp) by up to 5 times. And, it will still be going strong long after 20 incandescent bulbs have burned out!

Yes, even having an LED lit for eight hours every day, you can expect it to last for many years before its lumens fall to an unacceptable level! This is much longer than any other type of bulb currently on the market, and a feature that will save you money on replacements going forward.

Why Do LEDs Last So Long?

In lighting terms, heat is the enemy. So, LEDs that produce very little of it, suffer very little wear-and-tear, lasting longer as a result. They do produce a tiny amount, however, it's directed away from their vulnerable parts (the LEDs themselves), by a super-conductive metal heat-sink at their base.

The video below illustrates exactly why LEDs last so much longer than old style light bulbs. It's all down to heat!

Give Us A Call!

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If you’d like to discuss the benefits of LED lighting any further, please don’t hesitate to contact a member of our customer service team.

You can get in touch with us by calling us on 0800 999 7797. Or, you can send us an e-mail to: sales@ledmonkey.co.uk.

You can also contact us via our Facebook, Twitter Instagram social media pages, and if you're experiencing any LED light-related issues around your home, take a look at our FAQs page for a whole bunch of easy-to-follow solutions.