Jun 202012
 

LED Light BulbLEDs are everywhere. Over past years they’ve crept into our cell phone screens, the headlights on our cars, the display boards in our favorite sports stadiums, and even into our household light sockets.  With their minimal energy consumption and extra-long rated lives, these babies are on the rise. But in this heyday of LED innovation, have you ever wondered how they came about?

Disclaimer: the history of LEDs is crazy.

(But what would you expect for a light source that we use to light our streets at night AND zap the tattoos off our arms?)

In the beginning was Henry J. Round, a British experimenter at Marconi Labs. In 1907 he was unsuspectingly at work on a cat’s whisker detector for radio made with carborundum (SiC) when suddenly he witnessed a yellowish light—and lo! it was electroluminescence. With increased voltage the light turned brighter yellow, then green, orange, and finally blue. Round was so stoked he wrote a letter to Electrical World about it, and then went back to his radio. Continue reading »

May 182012
 

We’ve been in business since 1993, so we’ve heard just about every question in the book when it comes to light sources. “How much longer does an LED light last than a fluorescent, on average?” “Which light sources are dimmable?” “What exactly is xenon lighting?”

We created this infographic to address those questions and more – all of the FAQ’s that we hear related to choosing a light source. You’ll find an overview of how each one works, a color temperature comparison scale, pros & cons, estimated lifetime, and a few more general tips. Let us know what you think!

Want to embed this infographic on your own site or blog? We’d love that! Copy & paste the embed code below:

<img src=”http://images.pegasuslighting.com/infographics/compare-light-sources.png” width=”788″ height=”2072″>
<br><br><strong>
Choosing A Light Source</strong> created by <a href=”http://www.pegasuslighting.com”>Pegasus Lighting</a>.

Feb 292012
 

Click to enlarge

The Department of Energy just published a new report comparing the life-cycle of LED, compact fluorescent, and incandescent lamps.

According to the report, CFLs and LED lamps are very comparable in terms of average energy consumption. They both use about one-fourth of the energy that incandescent lamps do.

However, the energy used to manufacture an LED lamp is expected to fall significantly in the next several years (see the purple pie charts).

What do you think … Is this what you would’ve expected to see? I was surprised to find that LED and CFL were neck and neck; I would’ve expected LED to win out in low energy consumption.

 Posted by on February 29, 2012 at 11:53 am
Jan 182012
 

Imagine your lighting wall switch becoming obsolete.

Imagine controlling every single feature of your lighting from your Smartphone: dimming an individual light or a set of lights, turning them on/off, setting up a timer, and even tracking energy usage in real-time.

In Japan, that’s becoming a reality. Tokyo-based lighting tech startup Net LED Technology Corp has developed the first cloud-based LED lighting system.

It will go on sale in Japan February 20. The lights are 40W LED tubes with a 40,000 hour lifespan, and they come with built-in Wi-Fi. It’s possible to control the lights from a smartphone, tablet, or computer.

For more information, see the feature in TechCrunch or view Net LED Technology Corp’s English site.

 Posted by on January 18, 2012 at 1:40 pm
Jan 162012
 

Julia Silverman and Jessica Matthews first began thinking about the power of a soccer ball for a college project. Challenged to come up with a solution to a problem facing the world, they focused on the lack of access to electricity in developing countries. Their imaginary solution was a soccer ball that harnessed kinetic energy from play and transformed it to electrical energy to power an LED lamp.

Little did Silverman and Matthews know that 3,000 of those electricity-generating soccer balls would eventually be delivered to Mexico, Haiti, El Salvador, Costa Rica, and South Africa. This is a pretty incredible story:

 Posted by on January 16, 2012 at 10:42 am
Nov 072011
 

The holidays are right around the corner, and we are excited to be offering a line of energy efficient holiday lights this year.

Before you stock up with the same old incandescent holiday string lights, consider that LED holiday lights…

  • … Use 90% less energy.  Put a little money back in your wallet when the power bill comes around.
  • … Last 10 times longer.  Avoid the annual trip to the store to replace yet another light string.
  • … Are cool to the touch.  Cross “Christmas tree fire hazard” off your list of worries for the holiday.
Dawn Mohrmann traditional entry
Photo from Houzz Ideabooks. 

Have you ever used LED holiday lights?  Do you plan to this year?

 Posted by on November 7, 2011 at 2:16 am
Oct 172011
 

The U.S. will be turning over a new leaf in overall electricity consumption thanks to LED lighting.

I attended a webinar about LED lighting last week and learned some interesting facts about what the future holds for this incredibly efficient light source.

Already, LED lighting has far surpassed incandescent, halogen, linear fluorescent, and high pressure sodium lighting as far as efficacy (a measure of efficiency for a light source, expressed as light output, or lumens, per watt of electricity used).

The expectation is that LEDs will continue to dramatically increase in efficiency and to simultaneously dramatically decrease in cost. Lighting designer Joseph A. Rey-Barreau led the webinar, and he noted that most other lighting technologies are on the edge of their potential as far as efficacy. However, there seems to be no limit to LEDs on this front.

Another interesting gem from the webinar came from a few charts analyzing electricity consumption in the United States. Rey-Barreau noted that if the U.S. had maintained the status quo with previous light sources, electricity consumption would double in the next ten years.

However, thanks to LED lighting, we are expected to actually drastically reduce electricity consumption in the next ten years. LED lighting will likely reduce lighting energy use in the United States by one-fourth by 2030!

 Posted by on October 17, 2011 at 12:53 pm
Sep 202011
 

Sometimes, it’s best to let photos speak for themselves.

Take a look at this kitchen. See the newly installed under cabinet lights nestled discreetly underneath those cabinets? If you can barely spot them, it’s because our LED under cabinet lights are incredibly low profile.

The following photos show the kitchen with the under cabinet lights turned off. For all intensive purposes, consider these the “before” photos:

 

 

 

 

 

 

Continue reading »

 Posted by on September 20, 2011 at 12:17 pm
Sep 152011
 

A research project funded by the Bill and Melinda Gates Foundation is using LED blankets to treat jaundice in newborns.

The story’s an incredible one. The entire idea for the project originated from a small family in Philadelphia, PA.

Dr. Harel Rosen worked in the neonatal intensive care unit at Riddle Hospital. When his mother visited his workplace, she asked about an infant in the NICU laying naked under a bank of blue lights. Rosen explained that the baby was being treated for jaundice with light therapy, and they needed to treat as much of the skin surface as possible.

Daniella Rosen was troubled. “But his mom could not pick him up or hold him,” she said.

The incident sparked a series of conversations at the family dinner table. How could babies with jaundice be treated with light therapy in a less intrusive way? And what about areas of the world without access to power? Was there a solution possible that wouldn’t require electricity? Africa, for example, has one of the highest mortality rates for neonatal jaundice. Could a solution make it easier to treat jaundice across the world? Continue reading »

 Posted by on September 15, 2011 at 4:13 pm
Sep 062011
 

You probably know that LEDs are efficient, long-lasting, bright, and even affordable. But do you have a grasp on exactly how much money you can save by switching to LED lighting?

Let’s compare a 9-watt LED to a 60-watt incandescent light bulb:

Assuming the cost of electricity is $0.10/kWh, the incandescent light bulb will cost you $300 in electricity over 50,000 hours. The LED will cost you $45. That amounts to $255 in savings for every 50,000 hours of use.

 

 Posted by on September 6, 2011 at 10:46 am

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