The Difference Between LEDs and CFLs: Durability

mid section of a person with hard hat and tool belt
Do you know what makes an LED different from a CFL? In this blog series, we’re explaining just that!

We all know incandescent light bulbs are delicate. You break that filament, and it’s lights out (literally). It’s easy to understand why our basic incandescent lights are so fragile – we can see and understand the simple internal structure at a glance. But, when it comes to understanding the capabilities of LEDs and CFLs, the answers aren’t as straightforward. Both light sources use more complex systems to generate light, but does this make them any less breakable?

It’s time to dive a little deeper.


Since LEDs don’t use a filament, they can easily withstand almost any kind of jarring vibration. When you’re rough on LEDs, transporting them from place to place while in use, or keeping them in jolt-prone spots (like in and around elevators), you don’t have to worry about easily breaking or damaging them. (more…)

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The Difference Between LEDs and CFLs: Glass Envelope

LED Reflector Lamp
If you’re deciding which light source to use for your next project, look no further! In this blog series, we’re going in-depth to explore the differences between LEDs and CFLs, so you can make the best decision. In this post, we’re talking about structure…

LEDs and CFLs are built very differently.

LED light bulbs use glass or plastic envelopes of almost any thickness. They’re built to last, even in the most demanding circumstances. CFLs, on the other hand, have a daintier construction. If you drop one, the thinner glass envelope could easily break. This can be a problem, especially because CFLs contain trace amounts of mercury that will be released when the light bulb shatters.

To prevent CFLs from cracking so easily, some manufacturers have begun encasing CFLs in silicone coatings, so even if the glass breaks the shards and mercury will stay within the silicone, not allowed to get into your environment. The CFL’s traditional spiral is covered by a more conventionally shaped envelope like this: (more…)

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Pegasus Lighting Roundup: Lighting in April

Midwest Energy News
Image via Midwest Energy News

A lot has been happening in the lighting world lately. Here are this month’s highlights…

In Lighting News…

Turkeys Love LEDs: A Minnesota turkey farmer is using LED lights to keep his turkeys happy and healthy. Every morning, Mike Langmo uses his dimmable, programmable LED lights to simulate a sunrise for his flock. There’s evidence that this practice is helping regulate their circadian rhythms, possibly contributing to their health and well-being. Read how it works here.

LED Prices Dropping: Two months ago, Cree announced they would be selling an LED light bulb for less than $10 in the US. Now, Osram has revealed that their new LED replacement for the 40W incandescent will retail at €9.95 in Germany. With prices going down this rapidly, LED light bulbs are becoming more attractive to consumers. Read more about this event here.

Most Efficient LED?: Philips has also been stepping up their game this month, claiming to have created the world’s most efficient lamp. It’s an LED tube light replacement prototype that produces 200 lumens of pure white light for every watt it uses. Learn the details here. (more…)

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How Energy-Efficient Buildings Work (An Infographic)

Ever wonder how to make a building energy-efficient? Well, look no further than this snappy infographic from Spaceway. Learn how our modern buildings are still losing energy, and what you can do to prevent the waste. Start with the lights, and assess everything from flooring to furniture to water usage. The infographic also highlights several great examples of energy-efficient buildings around the world…

How Energy Efficient Buildings Work Infographic (more…)

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Pegasus Lighting’s 8 Favorite Eco-Friendly Blogs

Happy Earth Day from everyone here at Pegasus Lighting!

If you’re a regular here on the blog, or if you’ve browsed around on our website, you know we’re big fans of energy-efficient, “green” lighting. We strive to stay up-to-date on the latest eco-friendly news and innovations, and to always provide you, dear readers, with quality green lighting products and helpful energy-saving tips.

But we can’t do it alone! We follow a group of expert bloggers and industry leaders to help us in our quest to make sustainability accessible for all.

So today, I’d like to send a special shout-out to 8 of my favorite green and eco-friendly blogs and websites:

  • Fresh Energy: Fresh Energy is a non-profit organization that’s been around for over 20 years – so you know they know what they’re talking about. Their main goal is to promote smart energy policy concentrating on areas like clean energy, energy-efficiency, climate change, and eco-friendly transportation and building.
  • Green Upgrader: Green Upgrader is one of our favorite green lifestyle blogs, eager to show all readers that even small eco-friendly changes can make a big impact! We love them for their constant eye on sustainability news, and mass of green how-tos, but they also offer neat things like ideas for sustainable cooking and eco-friendly entertainment options (think low-impact board games and the like).
  • EarthTechling: EarthTechling, run by a group of technologist-meets-environmentalists, is committed to reporting on technological advancements that could change the world for the better. They cover everything from simple how-to guides about saving energy around the house to breaking news regarding new gadgets, appliances, and technological upgrades.
  • Clean Edison: Clean Edison is a company that provides educational material about clean technology and sustainable building. Their website is a goldmine of information on solar energy, energy-efficiency, and green manufacturing, just to name a few. They also have a fabulous, practical blog offering eco-friendly advice to regular people. Check it out for posts like “30 Actionable Steps Towards Energy-Efficiency.”


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The Difference Between LEDs and CFLs: Infrared and UV Radiation

dark sunglasses
We won’t rest until we’ve explored every way LEDs and CFLs differ! This post is part of a series doing just that. So far we’ve covered everything from the basics, like rated-life and energy-efficiency to more complex topics, like how each source performs in cold temperatures. Click here to explore the entire series.

Radiation. We’re talking about lights here, so the topic was bound to come up sooner or later.

Infrared Radiation (IR)

First of all, it’s a myth that LEDs don’t generate heat. All light sources generate some heat, and LEDs are no exception. Excessive heat can damage an LED or lessen its rated life – so it’s essential that LEDs have well designed “heat sinks” to dissipate the heat generated in the rear of the LED.

This myth may have originated from the very true fact that LEDs don’t emit infrared radiation in the same direction as the emitted light, unlike other light sources.

A CFL, on the other hand, does emit IR and can get very hot to the touch. (more…)

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