Cree LED Revolution Blog

Cree and LED lighting are starting a revolution

Benjamin Moore Paint Store Gets Cree LED Lighting Makeover

Friday, August 12th, 2011


In a paint store, color is everything. But it’s hard to make color samples stand out when exposed T-12 fluorescent tubes are lighting the way.

At the Benjamin Moore paint store in Staunton, Virginia, store owner Lesley Merritt was used to dealing with the store’s outdated lighting. When a fluorescent tube began flickering or burned out, she would guide customers to another spot in the store so they could inspect color samples in better lighting.  

But she doesn’t have to do that anymore thanks to the recently installed Cree LED lighting. Lesley replaced 28 T-12 fluorescent tubes with 18 long-lasting Cree CR24 LED Troffers. The troffers feature Cree TrueWhite Technology®, which is Cree’s patented technology that delivers highly-efficient light with high color accuracy, while maintaining color consistency over the life of the product. 

“Although we sell paint, color is essentially what we sell. So for colors to look more accurate and more vibrant here in the store is very helpful,” Lesley said.

Not only is the light quality improved, but the store is reducing its energy consumption, as well as the time and money it spends on lighting maintenance. By replacing 28 T-12 fluorescent tubes with 18 Cree CR24 LED troffers, the store is reducing its lighting energy consumption from 2,240 watts down to 792 watts.

BeforeA

AfterA

The CR24 LED troffer is designed to last a minimum of 50,000 hours. That means the store could leave the lights on for eight hours a day, seven days a week for more than 17 years without having to replace.

“In the past six years, all of the fluorescent tubes have been replaced at least once,” Lesley said. “Some have been replaced more frequently due to flickering and poor color quality. Usually we dealt with the flickering and the colors not matching for a long time before we would decide we were going to pay somebody to change the bulbs. I’m really looking forward to the new Cree LED lights not needing to be changed for a long time.”

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After: 18 Cree CR24 LED troffers line the ceiling

There’s another perk to the new LED lights too: Lesley can’t hear them. The first day Lesley flipped the switch on the LED lights she said she couldn’t believe how quiet the store was compared to the constant hum of the fluorescent tubes.

Watch this video to get an inside look at the transformation of this store:

Melting chocolate bunny remake features “dude” bunny melting under incandescent light

Tuesday, April 19th, 2011


A little over a year ago, we made two chocolate Easter bunnies YouTube stars. It was part of our mission to educate the world about how energy efficient LED lighting really is (and how wasteful incandescent lights truly are).

So when I noticed my local grocery store was stocking chocolate bunnies a few weeks ago, I couldn’t resist a remake. I bought a couple of “Dude” bunnies because, let’s face it, there is nothing cooler than a bunny sporting some bling and then I took over an empty office for the setup.

Dude Bunny Box

Check out the bling our dude is rocking!

It wasn’t long before my Cree colleagues noticed the chocolate bunnies were back and were asking if they could help eat them when they were done. What were we doing different this time, they wanted to know?

Well, we swapped out the Cree LRP-38 that we used in the original for a Cree CR6 LED Downlight. And we brought in some Peeps and other accessories for visual interest. But the basic message remains unchanged: LED lighting is about 85 percent more efficient than incandescent light bulbs.

And as the incandescent light bulb fades to black in the next few years as part of the incandescent phase out, we think it’s especially important to remind people that about 90 percent of the energy consumed by traditional light bulbs is wasted as heat. That’s the very reason why you’re about to see the face of one of these Dude bunnies melt off.

So take a moment to watch what happens to these Dudes. Then, when you’re done, perhaps forward this video on to someone you believe needs to be enlightened about LED lighting!

Make a change during Earth Hour

Friday, March 25th, 2011


On Saturday night millions of people around the world will be turning off their lights for one hour. March 26 marks the 4th annual Earth Hour, a global initiative in partnership with World Wildlife Fund to raise awareness for environmentally sustainable action.

Participating is easy. At 8:30 p.m. Saturday, turn off your lights. There are no time zones to adjust for, it’s 8:30 p.m. no matter where you are. Sit in darkness and be comforted by the fact that you’re taking part in the largest voluntary action ever witnessed, with participation across 128 countries and territories and every continent, according to Earth Hour organizers.

This year Earth Hour boosters are asking people to go “Beyond the Hour” and pledge to do something else that will help make the world more sustainable. This could be as simple as pledging to use a refillable water bottle instead of sipping from disposable plastic water bottles. Or it could be more of a commitment, like pledging to start composting.

We like those ideas. But, since we’re all about energy-efficient lighting, we have an idea of our own.

During Earth Hour, when your electricity is already turned off, why not use this as an opportunity to replace an incandescent or fluorescent light in your home with an energy-efficient LED light?

Replacing an energy-wasting bulb won’t take long. You’ll be back to your candlelit board game or romantic dinner before you know it.

Then, when it’s time to flip on the switch again, you’ll be conserving more energy than you were an hour ago. Now that’s a change we can all get behind.

The incandescent light bulb phase out does not mandate CFLs as a replacement

Tuesday, February 22nd, 2011


Last night, I cried out at my TV as I watched the NBC Nightly News story on the upcoming incandescent light bulb phase out. The very first line delivered by the reporter was inaccurate and misleading and I knew it. 

“At 131 years old, Thomas Edison’s bright idea may be due for a makeover,” said NBC’s Chief Environmental Affairs Correspondent Anne Thompson, “but the government-mandated transition from the incandescent to the compact fluorescent – the CFL – isn’t winning many style points.”

“That’s not true,” I hollered at the TV, sending my cat flying off the sofa. You would think I was watching the Superbowl instead of the nightly news by the way I was shouting at my flatscreen.

It’s really not true! The federally-mandated phase out of inefficient incandescent light bulbs does not in any way specify that consumers must only buy mercury-laden CFLs.

The new energy efficiency standards, set to start in 2012, say we can replace our energy-wasting incandescent bulbs with any lighting technology that is roughly 30 percent more efficient than traditional incandescent light bulbs.

That means we could light our homes and businesses with CFLs, but it also means we can choose energy-efficient LED lighting. It even means we could turn to slightly more efficient incandescents that use halogen technology (although this borderline defeats the purpose of the standards, since halogens just barely make the energy-efficiency cut).


 

How Did They Ignore LEDS?

Disappointingly, last night’s NBC Nightly News story didn’t even mention LEDs. Although, if you visit the show’s website, you’ll see a clip that never made it on-air showing LED lighting as an option. But even that clip contained misinformation, because it wrongly stated that LEDs and CFLs are both 75 percent more efficient than incandescent lighting. Cree LED lights, like the CR6 LED downlight, are nearly 85 percent more efficient than incandescent lighting.  And while 10 percent might not seem like much, if you have 10 to 20 downlights—or more—it adds up!


 

Phase Out Opposition is Puzzling

Unfortunately, as we draw closer to the first step of the incandescent phase out, which begins in 2012, more misinformation about the energy efficiency standards will probably penetrate the media. It doesn’t help that Rep. Joe Barton (R-Texas) is leading an effort to repeal the energy-efficiency standards.

Supporters of reversing the phase out say the government shouldn’t mandate what type of lights we can use. They also say the incandescent phase out is costing the U.S. jobs after recent closings of traditional light bulb factories.

But what naysayers don’t mention is that we’ve created jobs by investing in new technologies, not old wasteful ones. So while incandescents and CFLs are almost entirely made outside the U.S., Cree was adding jobs and expanding manufacturing in North Carolina. In fact, we’ve added nearly 2,000 U.S. jobs focused on energy-efficient lighting in the past 10 years.

In September, we announced at a press conference that Cree has added more than 600 jobs since early 2009, surpassing our 2012 hiring goals set in fall 2009.

In September, we announced at a press conference that Cree has added more than 600 jobs since early 2009, surpassing our 2012 hiring goals set in fall 2009.

Also, this is not about the government mandating what we can and cannot consume. It is about setting national efficiency standards that save money for energy users, protect customers from out-of-date technologies that are overly expensive to operate, boost innovation and protect the environment.

On the Bright Side

Fortunately, it appears that most Americans are down with making the switch to energy-efficient lighting. A new USA TODAY/Gallup poll reports that nearly three out of four U.S. adults – or 71 percent –say they have replaced traditional light bulbs in their home in recent years with CFLs or LEDs. Additionally, 84 percent say they’re “very satisfied” or “satisfied” with the alternatives, according to the survey of 1,016 U.S. adults taken Feb. 15 to 16.

Many businesses, cities and universities are taking the lead on switching to energy-efficient LED lighting. You can see some of these LED lighting revolutionaries here

For a complete rundown on what the new energy-efficiency standards mean for lighting, I highly recommend you read this informative, easy-to-understand document from the National Resources Defense Council. That way, I won’t be the only one yelling at the TV (or newspaper or computer or radio or mobile device) the next time a misleading news about the phase out  is reported.

What happens if you let a baby hold a lit Cree LED light bulb?

Wednesday, February 9th, 2011


Ever try to unscrew a light bulb from a lamp right after you shut it off? It’s one of the easiest ways to burn your fingertips.

There’s a good reason why incandescent lights are used to keep your fries warm at restaurants and to bake brownies in an Easy Bake oven: Those suckers are hot!

Stick with me on this, and I’ll explain how/why my boss’ beautiful baby boy (say that five times fast) is able to safely hold our demonstration LED bulb, the TrueWhite Light, in his tender hands.

Baby Ben safely holds our TrueWhite Light.

Baby Ben safely holds our TrueWhite Light.

Most of the energy emitted from incandescent bulbs (about 90 percent) is emitted as heat instead of light. It takes a lot of current to heat that filament enough to make it glow and produce light. That’s what makes the incandescent bulb so inefficient and explains why you’ll burn your fingers if you try to touch one once it’s turned on, or even shortly after it’s turned off.

LED lighting is about 85 percent more efficient than incandescent bulbs. Since LEDs consume significantly less energy, they don’t emit as much heat. That’s why you typically won’t burn yourself if you try to touch an LED light once it’s turned on.

Some LED boosters wrongly say LEDs don’t emit any heat. In fact, they do generate heat and it’s really important to dissipate that heat, or it can contribute to premature failure. That’s why you’ll notice metal fins wrapped around the base of most LED lights. Those fins make up the heat sink, which helps transfer the heat away from the LEDs and cool the lighting system.

The overall efficiency of LED lighting combined with proper thermal management makes it possible for our model baby to touch the TrueWhite light without burning his little hands. It also explains why this chocolate bunny barely melted under one of our other LED lights.

Those of us in the LED lighting biz have a game we love to play with our friends. We invite them to touch an illuminated LED light, such as our CR6 downlight. Then we watch as their hand reaches for the light with trepidation. Once they touch it and feel that it’s not blistering hot like an incandescent light, their face relaxes and we all have a good laugh. Yes, we really do this.

So as we prepared to showcase our TrueWhite Light, we wanted to make the efficiency of our LED bulb clear. We think baby Ben safely holding the next-generation of lighting in his precious hands does just that. And don’t worry, his mom is an LED lighting pro and she had him propped up in her lap the entire time.

And here’s a final thought for Baby Ben as he drifts off to his next nap:  If his mom screwed this LED bulb into a lamp in his bedroom, she probably wouldn’t have to touch it again until he was off to college.

Cree demonstrates 60-watt equivalent LED light bulb

Thursday, January 27th, 2011

January 27, 1880 was a significant day in lighting history. That was the day Thomas Edison received the historic patent for the incandescent light bulb. The patent changed the way we illuminate the world and  is listed by the National Archives as one of 100 milestone documents in U.S. history.

Today, exactly 131 years later, we have a historic announcement of our own. We are proud to demonstrate our TrueWhite Light. It’s the brightest, most efficient, LED-based A-lamp that can meet ENERGY STAR® performance requirements for a 60 watt standard LED replacement bulb.

bulb in hand

We’re demonstrating that it is possible to make an LED light bulb that delivers the same bright, warm light as a 60-watt incandescent bulb. We want to show the world that this is what LED lighting can and should look like. And we want to help our customers – don’t forget we don’t just make lighting, we manufacture LEDs and modules that we sell to lighting manufacturers – bring bulbs like this to market. See more details about this new light on TrueWhiteLight.com.

Through the use of Cree lighting class XLamp LEDs, Cree TrueWhite™ Technology, a patented Cree remote phosphor technology, and of course, plenty of Research and Development, we are continuing to break barriers in LED performance.

Last week, I got to hang out with the TrueWhite Light in a photography studio. We set up three orange lamps and put a 60-watt incandescent, a 60-watt equivalent CFL (it consumes 15 watts) and the 60-watt equivalent Cree TrueWhite LED bulb (it consumes less than 10 watts).

 Light Comparison blog

As soon as the photographer’s assistant plugged in the lights, I was awestruck. Our LED bulb truly looked as beautiful as the incandescent, and certainly better than the CFL. And that’s the way it should be. LED lighting should look as good as the technology it’s replacing.

We understand why so many people are reluctant to let their incandescent bulbs go. Even though they waste energy, they still provide that warm light that many of us love. But Cree is continuing to prove that LED lights can do it too.

 That’s why we had a little fun with Thomas Edison this week on Twitter, on our facebook page and in this video:

 

Don’t get us wrong, we absolutely appreciate what Edison did 131 years ago today. But the time has come to turn off energy-wasting incandescent lights and join the LED lighting revolution.

It’s funny,  a hundred years ago Thomas Edison made some predictions in the Miami Metropolis about what the world would be like in 2011. His definitely reached for the stars in his predictions, calling for books that were printed on leaves of nickel and taxicabs made of gold. But he didn’t predict that a new lighting technology would render his incandescent light obsolete.

The incandescent bulb has served us well for many years, Mr. Edison, but thanks, we’ll take it from here.

How to properly clean up a Compact Fluorescent Light bulb: Grandma gets a lesson in CFLs

Monday, December 20th, 2010

What would you do if you dropped a fluorescent light bulb and it shattered? Your instinct might be to immediately grab the broom and dust pan (or the vacuum), clean it up and toss it in the trash.

But CFLs and other fluorescent lights contain a small amount of mercury, which means you have to take precautions to avoid mercury exposure to yourself and the environment.

The U.S. Environmental Protection Agency has a list of very specific steps you’re supposed to take to avoid mercury exposure if a CFL breaks. There’s no clean up list for LED lighting because it doesn’t contain toxic mercury.

The CFL cleanup list includes separate steps for a broken bulb on hard surfaces, carpeting and even bedding. And while each list has slightly different steps, the theme is pretty much always the same: Air out the room, put all debris in a glass jar with a metal lid and check with local government to see if there are any additional disposal requirements.

In one scene, grandma shows off how happy she is with CFLs. This is before she finds out about the EPA-recommended cleanup steps.

In one scene, grandma shows off how happy she is with CFLs. This is before she finds out about the EPA recommended cleanup steps.

While working on this darling video “Grandma Tries CFLs” I called the local household hazardous waste office. I asked the woman who answered what I should do with the debris from a broken CFL, adding that I followed all of the EPA’s cleanup steps. No joke, the woman told me she didn’t know what a CFL was. She transferred me to a manager who advised that if I had followed the EPA’s cleanup steps and sealed all materials, I didn’t need to take any extra steps of disposal.

It just goes to show that plenty of people don’t know that CFLs and other fluorescent bulbs shouldn’t just go in the trash. (Also once a CFL burns out, don’t just trash it, find a local collection site).

So we decided to have some fun and make an in-house video showing off the numerous steps you should take to clean up a broken CFL. And, for the record, we didn’t actually break a CFL in the video. A broken incandescent played the role.

So join “grandma” as she learns what to do if her shaky hands make her lose her grip on a CFL. Good thing her grandson was around to teach her the EPA’s proper clean up steps. You’ll laugh, you’ll cry and you’ll probably never want to break a fluorescent light bulb.

Special thanks to The Apartments at the Arboretum in Cary, NC, which allowed me to get my Steven Spielberg on and create this video masterpiece:

And while CFLs are energy efficient, many LED lights are even more efficient and deliver better quality light. So take a cue from our grandson and help spread the word about the LED lighting revolution to your family, friends, coworkers and anyone who will listen. Heck you can even try to win 5 Cree CR6 LED downlights of your own in our monthly photo contest.



Indiana Tech upgrades oldest building on campus with LED lighting

Tuesday, November 23rd, 2010

Built in 1857, the Administration Center at Indiana Tech University is a landmark for generations of alumni who know that even as the campus grows, they can always count on recognizing the familiar historic brick building when they visit.

And now, the oldest building on campus is historic for another reason: It’s the first building on campus to boast energy-efficient Cree LED lighting.

The 153-year-old building was gutted for renovation in October 2009 with the goal of achieving LEED (Leadership in Energy and Environmental Design) certification. The resulting work transformed the pre-Civil War era building into a haven of energy-efficient technology and sustainable design.

outside

The historic Administration Center at Indiana Tech is a landmark for alumni.

When architect Terry Thornsbury of Viridian Architectural Design began planning the project, he said he knew he wanted to incorporate LED lighting.

“We wanted something that would help get us as many points as possible in the LEED system and reduce energy but also have a pretty good return on investment,” Thornsbury said. “Anyone who comes to me saying they want to save energy, the first thing I’m going to tell them is you’re going to want to do LED lighting because it makes sense these days to reduce energy consumption.”

Indiana Tech 1

Ninety-eight percent of the building is lit with Cree LED lighting.

The three-story building is lit 98 percent with Cree LED lights, helping the Fort Wayne, Indiana-based college conserve energy, reduce maintenance and provide beautiful light for employees, students and alumni. The 10,957-square foot building features:

  • 97 Cree LR24™ LED troffer lights. Offices, conference rooms and corridors illuminated with beautiful, clean white LED light. Each light consumes only 44 Watts while delivering 3,200 lumens. The high-quality light features rates 90 on the Color Rendering Index with a color temperature of 3,500K.
  • 61 Cree LR6C™ LED downlights.  Each light consumes only 10.5 Watts while delivering 650 lumens. The lights rate 92 on the Color Rendering Index and also feature a color temperature of 3,500K.
  • Long lifetime. The Cree LED lights are designed to last 50,000 hours. At the 50,000 hour mark, Cree’s LED lights are designed to provide at least 70 percent of their initial light output. That means the lights in the Administration Center could last more than 19 years based on the university’s projected use of 10 hours a day, five days a week.
  • Energy Efficiency. Over the long life of the LED lights, compared to a fluorescent downlight, the energy-efficient lighting in the Administration Center can save an estimated 259,700 kWh, which avoids 270 tons of carbon dioxide emissions.
  • Intelligent Control. The Cree LED lights work with an Intelligent Lighting Controls system with occupancy sensors and daylight harvesting, a control system that helps conserve even more energy by automatically adjusting the light level based on how much natural daylight is shining through the building’s large, preserved windows.

The University also worked with Primary Engineering, Inc., a Ft. Wayne, Indiana-based firm dedicated to sustainable design and CM Buck and Associates, Inc. which distributes Cree LED lighting in the Ft. Wayne area.

Indiana Tech Facilities Director Mike Townsley said he was skeptical an all LED-lit building would provide enough light for employees to work under. But that hasn’t been a problem, he said. Instead, employees are taking advantage of dimmers installed in each room. He said most employees are keeping the lights in their offices dimmed to 50 percent, which helps save even more energy.

“We’ve heard positive feedback about the lights,” Townsley said. “So far I’m pleasantly surprised.”

Mike Peterson is one of the university officials who moved into the newly-renovated building in July. He said he likes the controllability the dimmer in his office offers. He also enjoys the quality of the LED light.

“There’s good light distribution around the room,” Peterson said. “It doesn’t feel like there are dark areas or shadows.”

As director of Alumni Relations, Peterson says there’s another benefit to the LED lighting: Alumni like it.

“When you’re talking with alumni, any time you’re doing anything that’s technologically advanced it’s a plus,” Peterson said, adding that it’s a bonus that LED lighting technology is helping the school conserve energy. “[Alumni] feel like we’re being smart with the money that’s invested by them,” he said.

The building houses the Alumni Welcome Center, which is designed to be an inviting place complete with a fireplace made with bricks salvaged from the building. The warm, recessed Cree LED lighting adds to the ambiance, he said.

Cree LR6C LED downlights and LR24 LED troffer lights illuminate the building.

Cree LR6C LED downlights and LR24 LED troffer lights illuminate the building.

The Administration Center renovations were made possible by a $2 million donation from alumnus Wilfred Uytengsu, Sr., who wanted the money to go toward energy-efficient improvements. The building was recently renamed the Wilfred Uytengsu, Sr. Center in his honor.

And while Thornsbury was initially hoping to achieve LEED Silver level certification, the project exceeded expectations and has been submitted for Gold level certification. We’ll let you know when Indiana Tech receives final word from the U.S. Green Building Council.

How can grocers make their fruits and veggies pop? Hint: It involves LED lights

Thursday, August 12th, 2010

The ladders at a Michigan-based grocery chain are being used a lot less these days now that the produce sections are lit with Cree LED lights.

Up until a few months ago, employees at the three Value Center Marketplace stores used to haul out the ladder every couple of weeks to replace the burned out 90-Watt Par 38 spotlights that lit up the fruits and veggies, according to store owner Ron Fariada.

But earlier this summer, Ron replaced the energy-wasting incandescent lights in the produce sections at all three of his stores with energy-efficient Cree LRP-38™ LED lights. His new LED lights consume only 11 Watts of energy and provide beautiful, warm light that helps make the color of the store’s fruits and vegetables pop.

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“It’s just worry free,” Ron said. “I’m not going to have to worry about changing any bulbs for years. There was an upfront cost, but you’ve got immediate savings as far as power.”

When Ron opened the first Value Center Marketplace in 1989, he was committed to offering the freshest quality foods and the best in family value. More than 20 years later, Ron now runs three of the grocers just outside Detroit, Michigan.

In all, he replaced 50 incandescent lights at each of stores with Cree LRP-38 lights, for a total of 150 LED lights.

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Ron said he expects a two-year payback on his LED lights when he takes into account the energy savings and maintenance savings. The produce lights in his stores are on for about 12 hours a day, seven days a week. And since the LRP-38 LED lights are designed to last 50,000 hours, Ron could continue to save energy and money for another nine years before he needs to consider replacing the lights.

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Already he’s noticed that when he walks under his new LED lights, the area feels cooler than when the 90 Watt incandescent spotlights were lighting up the area.  Ron said he also expects to see HVAC savings.

The produce at Ron’s stores is hand-picked daily from the local farmers market. And now, it can truly shine under LED lights.

New York-based Design firm wins the June LED Lighting contest

Thursday, July 8th, 2010

The lobby of Stressdesign may look modern and chic, but look closer and you’ll see that the Syracuse, New York-based Design firm is actually employing some pretty ancient technology – incandescent lighting!

Stressdesign president Marc Stress wanted to improve the lighting in his office, so he snapped a photo and submitted it to our monthly photo contest. Today, we’re pleased to announce that he is the June winner and will receive five Cree LED lights to replace the halogens heating up his workspace.

Here’s his winning picture and what he wrote about the lighting:

“We have a mix of incandescent and CFL lamps in our office. The CFLs are inconsistent at best, and all the incandescent lamps (add) to heat and $$$ on utility.”

lobby photo

This was the winning photo for the month of June.

I e-mailed Marc to tell him the good news. He opted to receive the Cree LRP-38 ™ light which will replace the 75W Halogens that hang from tracks over the office.

Some facts about the Cree LRP-38 lights that Marc is receiving:

  • The LRP-38 consumes only 11 Watts, while producing light comparable to a 75W incandescent.
  • It’s designed to last 50,000 hours. That means Stressdesign could leave the lights on for eight hours a day, seven days a week for just over 17 years.
  • But these lights won’t burn out instantly at the end of their life, like the incandescents Marc is currently burning.  Cree’s LED lights are designed to provide at least 70 percent of their initial light output at the 50,000 hour mark. Many different factors (such as fixture design and operating conditions like temperature and current) determine the actual lifetime of an LED fixture or bulb.
  • The light quality is beautiful. The LRP-38 light delivers warm light (2700K) and gorgeous color (achieving 90 out of 100 on the color rendering index).

Marc said he can’t wait to bring LED lighting to his Design firm.

“I’ve been using LED lighting solutions in various applications in my home and office for the past 5-7 years. I’ve used them for guide lighting, ambient lighting and supplemental area lighting. Early attempts were novel in their power savings, but light output and quality was lacking,” Marc wrote to me.

“Lately, I’ve noticed a huge jump in lumen output, CRI quality and lamping options. I am expecting the new Cree lamps to exceed expectations and provide a better alternative to CFL lamps,” he added.

If you want to give Cree LED lighting a try in your home or office, enter our July photo contest. To qualify for our giveaway, all you have to do is submit a photo of bad lighting to our site. We could be featuring you next month on our blog.