Cree LED Revolution Blog

Cree and LED lighting are starting a revolution

Cree’s Silicon Carbide MOSFETs help improve efficiency of electronics

Thursday, October 13th, 2011

Cree is celebrating Energy Awareness Month with a series of blog posts about ways Cree and our products are helping save energy.

At Cree, we’re all about energy awareness and energy efficiency – from our LED components and fixtures to our power components. (Come on, haven’t you ever wondered how your iPod works? Or how electric vehicles drive with little to no gas?) That’s right, we take energy efficiency so seriously we even evaluate electrical processes – the micro level of electronics, if you will.

So what does this mean? It means our engineers continue to find ways to not only make LED lighting more energy-efficient, but also the power applications we rarely ever think about with products such as Silicon Carbide (SiC) Schottky diodes and MOSFETs.  No, a MOSFET isn’t a new type of spaces ship—it’s a metal–oxide–semiconductor field-effect transistor.

Cree Energy Awareness Month

Cree has been a recognized leader in SiC power devices for more than 20 years. In fact, we announced earlier this year the industry’s first commercially available SiC MOSFET.  This is a revolutionary breakthrough in power electronics and paves the way for significant energy conservation.   Just imagine reducing the weight of an electrical vehicle or an airplane by 25 percent!  That reduction in weight might get you all the way to the North Pole (depending on your current location, of course) without having to recharge.   Like a hummingbird -this is accomplished by the much higher switching frequency possible with SiC technology.    

But for non-power geeks, let’s think of it this way.

You’re ready for your morning training run or gym session – but not without some rockin’ tunes. You turn your iPod on and your music starts playing through your headphones – let the workout commence.

ipug

Flickr photo by NOGG3R5

But let’s pause for a second. What really happened between that moment you pressed play and the music coming to your ears? No, it wasn’t magic (although we certainly like to think so!). Deep inside that iPod is a transistor that converts the data from the song into sound, creating those sweet tunes you’re enjoying. There’s also the loss of power during this process, that’s why you’ll need to charge your iPod after your workout.

Seems pretty simple, right? Cree’s SiC MOSFETs operate in a similar manner, but on a much more complex scale for use in industrial high-power applications. We’ll leave it the power engineers to take it from there.

As Cree continues to develop SiC MOSFET devices, who knows what big steps we’ll take next. One thing that is for sure, we will never stop in our quest to drive energy-efficiency.

LIPA brings LED lighting rebates to Lucky Long Island residents

Thursday, October 6th, 2011

Cree is celebrating Energy Awareness Month with a series of blog posts about ways Cree and our products are helping save energy.

LIPA, the Long Island Power Authority, has been at the forefront of energy-efficiency for years. This forward-thinking, progressive utility, based in Uniondale, N.Y., has long promoted LED lighting technologies to customers and businesses in its service territory.  A non-profit municipal electric provider, LIPA provides electric service to more than 1.1.million customers in Nassau and Suffolk counties and the Rockaway Peninsula in Queens, and it is the third largest municipal electric utility in the nation in terms of customers served.

LIPA currently offers a wide variety of incentives on ENERGY STAR® and DesignLights Consortium (DLC) qualified LED replacement bulbs and fixtures, through its Efficiency Long Island Program. Efficiency Long Island is a 10-year, customer-funded energy efficiency program started in January 2009. The program offers a wide array of rebates and initiatives to its customers for energy efficient products and /or projects.

Cree Energy Awareness Month

After all, the only thing better than an LED lamp or fixture is a less expensive LED lamp or fixture! And, what’s good for customers (reduced energy usage and reduced costs) is good for LIPA (potentially preventing the need to build more power plants).

Through the Efficiency Long Island program, LIPA is aiming for a peak electrical demand reduction of more than 500 Megawatts by 2018. For non-power-plant experts, that is the equivalent of deferring or eliminating one large or two medium-sized power plants on Long Island.

According to LIPA, “The Efficiency Long Island program is the most cost-effective resource option currently available to our customers. It is estimated that implementation of Efficiency Long Island will reduce CO2 emissions by about 12 million metric tons compared to the CO2 emissions that would be produced from new power plants burning natural gas. This is equivalent to removing 2.5 million cars from Long Island roads.”

LIPA-logo-2

A number of big retailers, including The Home Depot and Costco, as well as smaller area stores participate in LIPA’s LED Lighting program, providing discounts on popular lights used in commercial applications, including downlights and directional lights, like PAR-38 bulbs. LIPA also has an online store where residential customers can easily purchase lighting from leading LED manufacturers. A LIPA resident can purchase Cree’s best-selling CR6 downlight at a discount of more than 50 percent off typical retail price. Talk about incentive to change!

So we at Cree tip our hat to LIPA. It’s great to have progressive utilities as LED Revolutionaries with us. Onward!

June’s LED lighting contest winner can stop playing pool in the dark

Friday, September 2nd, 2011


Playing a game of pool by candle light might sound romantic, but it’s not very practical. I mean, what if the dim lighting causes you to sink the wrong ball into the pocket? The black 8-ball sure can look like the purple 4-ball in the dark.

Bad lighting shouldn’t get in the way of your game.

Unfortunately for Lori Pecchenino, bad lighting has been a staple of the family’s dining room-turned pool table room for 20 years. But that’s about to change thanks to the five Cree CR6 LED downlights Lori won in our June photo contest.

“We have just finished opening up our (past) dining room that we’ve converted to a pool table room and it hasn’t had any overhead lighting in there for 20 years,” Lori wrote me in an email after I told her she won. “We’ve always had to bring in table and floor lamps as well as having candles in there to get some sort of ambiance and lighting at the same time.”

We can’t wait to see how these lights will transform Lori’s new game room. Here’s the before picture that includes unfinished downlight openings just begging for some energy-efficient LED lighting.

pool room june2011 winner

Lori’s new Cree LED lights consume only 10.5 watts, but are designed to replace up to a 65W incandescent light. The CR6 LED downlights are designed to last 50,000 hours, which means Lori could leave her new lights on for eight hours a day, seven days a week and they could last more than 17 years.

And if Lori spends that much time in her pool room over the next 17 years, then she’s bound to be a pool shark, so look out if you come across her in any pool halls.

“We have not used LED lights before and are looking forward to them as our electrician said we’d be very happy with the evolution of the lights that are available today in LED,” Lori wrote.

We’re certain Lori is going to love her new CR6 LED downlights. If you want to get your hands on some, you can locate a distributor near you or enter our September LED lighting giveaway. And stay tuned for the announcement of our July and August winners.

Live Blog for President Obama’s Remarks at Cree

Friday, June 10th, 2011

*UPDATE* 1:09pm Our Internet coverage is spotty. If there are no updates on our live blog, bear with us as we try to get back online and share updates from this exciting event.
We will be live blogging President Obama’s remarks when he visits Cree on Monday. Make sure you don’t miss our coverage by signing up for an email reminder for the event. The event time has not been scheduled yet, but as soon as we have those updated details, we will update the live blog. For now, we just put the time down as noon, Monday, June 10. But that time will likely change, so don’t go changing your schedule yet.

Enter your email address below for a reminder on Monday!


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.

Bride installs Cree LED lights in her home and suddenly sees color in furniture again

Thursday, October 7th, 2010


Tammi Myers is my kind of woman. When it was time to register for wedding gifts, the bride-to-be and her fiancé decided they wanted to register for energy-efficient Cree LR6™ LED downlights.

Now, to be fair, Tammi probably knows a little bit more about LED lighting than your average bride because she’s a project manager for CM Buck and Associates, an Indianapolis-based company that sells lighting, including Cree LED lights. But I don’t think Tammi’s gift registry idea was that odd because a friend of mine who isn’t in the lighting business recently asked me if she could register for LED lights for her wedding too.

You can’t always get what you want …

Unfortunately, Tammi’s coworkers didn’t pool together to get her Cree LED Lighting like she hoped. But Tammi must have had some good lighting karma on her side, because Cree introduced the CR6™ LED downlight – which is designed for home and light commercial applications – shortly after her wedding. The timing was too good to pass up.

Tammi Myers and her husband Phil wanted to include Cree LED lights on their wedding registry.

Tammi Myers and her husband Phil wanted to add Cree LED lights to their wedding registry.

 Tammi wrote us at Cree to say she would really love to be among our first customers to buy and install CR6 LED downlights, which only consume 10.5 Watts and are designed to last 50,000 hours. In her email she told us about her wedding registry, and how she and her fiancé didn’t manage to snag any LED lights (talk about a guilt trip, lol).

… You get what you need

So in July we shipped her 10 Cree CR6 LED downlights (since she works for one of our lighting distributors, she paid the distributor rate, but she still had to buy them) and a flip cam. We asked her to film her installation and to share feedback on the lights. We had no idea what her reaction to the lights would be (though we hoped she would love them since we sure do).

Turns out, Tammi did love the lights. She also loved being on camera too. She sent us back a lot of footage. The first video featured her husband installing the CR6 LED downlight for the first time, take a look:

Then she sent us some footage of her replacing the CFLs in her entry way with the CR6 LED downlights. I had a fun time editing this into a little package for you:

Before and After: What a difference LEDs make

She also shared some of her before and after pictures. In all, she replaced five 65-Watt Halogen flood lights in the kitchen, two 26-Watt CFLs her entry way (see video above), one 65-Watt BR30 lamp in the hallway (see video of her husband doing the install above) along with one in a bedroom and one in her husband’s catch-all room.

Tammie Bedroom Before & After

Tammi's Bedroom Before and After photos

 

Tammi's Entryway: Watch the installation video above to see her husband install this light

Tammi's Entryway: Watch the installation video above to see her husband install this light

before after kitchen

Take a look at Tammi's kitchen. Note how with her Halogen lights you couldn't read the "love, laugh, smile" decorations on top of her cabinets.

 

What a difference LED lights can make! Watch the video above for more details on this entryway!

What a difference LED lights can make! Watch the video above for more details on this entryway!

Now that Tammi has had a few months to reflect on her new Cree CR6 LED downlights, we asked her to write us and tell us what she thinks. Here’s what she said:

“This is what I tell my friends and family who aren’t in the lighting industry.  It’d be crazy to say I love my new lighting, I mean, it’s lighting, it’s almost supposed to be invisible since it’s not the decorative lighting.  But it does absolutely everything it was promised and more.  The best part is how much more light it seems to give.  It hits the wall higher and more broadly and doesn’t give me the scallops on the wall like downlights usually do.  I never used to sit around and hate the scallops, but with the new downlights, I either have more light or it appears to give more light, either of which I’m happy to keep.”

We can’t argue with that. Thanks for being our guinea pig, Tammi! Now we just have to get our distributors to offer wedding registries. To find a distributor near you, just type in your zipcode on this page.

And Tammi’s not alone in recognizing the CR6 LED downlight. Last month at the American Lighting Association conference in Las Vegas, the CR6 received a “Lighting for Tomorrow” design award.

Idaho resident wins Cree LED lighting contest, will finally turn on his living room lights

Monday, August 30th, 2010


You know the lighting in your home isn’t working for you when you intentionally avoid turning the lights on. That’s what Jerry Saltzer has been doing in his home’s living room and office for some time. Instead, he relies on floor and table lamps to illuminate the areas. How come?

“The living room (and office) in our house is equipped with incandescent downlights in 16.5 foot ceilings,” Saltzer told me in an email. “The light they produce is fine, but replacing those light bulbs is such a big production that we are inclined to leave them off as much as possible and use floor and table lamps instead.”

Jerry is the winner of the Cree’s July LED lighting giveaway. He submitted this photo of his problematic lighting situation:

July Contest Winner

Jerry wins five Cree LR6™ LED Downlights, which he plans to install in his living room. The LR6 downlight consumes only 10.5 Watts and delivers the warm light of a 65 Watt incandescent light. And Jerry’s new LED lights are designed to last 50,000 hours, which means he won’t have to deal with the hassle of swapping out his living room lights for years to come.

“Installing LED lights with an expected lifetime of 50,000 hours means that we can turn them on every evening and yet probably won’t need to change them until 2050,” Jerry wrote.

There are only a two days left to enter the August Cree LED Lighting giveaway. Just upload a picture of bad lighting in your home or office to Cree LED Lighting Revolution and you could be featured here next month.

CBS News features LED lighting on “Where America Stands”

Monday, June 21st, 2010

CBS News recently visited some of the top LED lighting manufacturers in the industry – including Cree – to discuss the demise of Thomas Edison’s light bulb and the rise of LED Lighting.

The resulting 6-minute news package is packed with some good information about why CFLs aren’t the solution to the upcoming incandescent ban (many incandescent bulbs will be banned widely come 2014). If you’re not into video, you can read the CBS News story here.


Watch CBS News Videos Online

I love that the reporter says “The LED is clearly the near term future of lighting …” Those of us in the LED lighting business know that LED lighting is already ready. Heck, we show off great examples of places lit by LED lights here and give away five free LED lights every month in our photo contest.

And as Cree CEO Chuck Swoboda says in his interview with CBS News, you should be pleased with the light quality you get from LED lights. “The difference between a regular light bulb and an LED light bulb, what you should notice is almost nothing,” Swoboda said. “That’s the key to making the technology work.”

Cree to provide LED lighting for kitchens in new Habitat for Humanity homes

Wednesday, May 26th, 2010

Cree LED lights will soon light up kitchens in thousands of homes built by Habitat for Humanity. Last week Cree announced its three-year, $1.5 million pledge to Habitat for Humanity International to provide our newest LED downlight for the kitchens in all new Habitat homes built in the United States.

Specifically we’ll be providing our CR6™ downlight, which is targeted to go to market this summer for about $60 each. This 10.5 Watt downlight is designed to last 50,000 hours, which means if homeowners use these lights four hours a day, they shouldn’t have to replace them for more than 30 years.

We’re very excited about this pledge because it can help reduce electricity costs for low-income homeowners. Habitat for Humanity already works to build homes that are more sustainable and efficient, and the addition of LED lights will help these homes save more energy.

In North Carolina, a Habitat homeowner should save almost $450 over five years by having the CR6 down lights installed instead of the currently-used halogens.* For a house in California, that jumps to nearly $600 in savings.*

A couple of weeks ago, I got to visit a Habitat home being built in Durham, NC. We delivered two of the CR6 downlights. My boss climbed up on a ladder to show the crew how to install the lights. All he did was take the trim off the existing fixture, unscrew the energy-wasting Halogen light and screwed in the CR6. Since I filmed him doing it, I was able to time him, and it took him 28 seconds! But you’ll have to take my word for it, because I’m not sure he’s ready to make his YouTube debut quite yet.

However, I also filmed the installation of the next CR6 by David Larkins, the construction director for Habitat for Humanity of Durham. I pulled him aside afterward to talk to him about the LED lights that were just installed. At the time he had no idea Cree was planning on putting these lights in kitchens at thousands of Habitat homes. Here’s what David had to say:

“We try to make a house that’s really easy to maintain, and energy efficiency is part of that,” he said. “A lot of the energy-efficiency improvements that we do just make a home that is smarter and simpler to maintain.”

Cree designed the CR6 specifically to make LED lighting more affordable for residential applications and we couldn’t think of a better residential application than inside homes for Habitat for Humanity.

*We came to this conclusion by using a North Carolina electricity rate of 9.42 cents per kWh and a California rate of 15.69 cents per kWh. We calculated four lights turned on 6 hours a day.

Cree CEO Chuck Swoboda joins Ben and Jerry in addressing North Carolina business leaders

Wednesday, May 19th, 2010

Cree CEO Chuck Swoboda had a tough act to follow Tuesday at the North Carolina CEO Forum. His keynote address was scheduled a few hours after the keynote delivered by Ben Cohen and Jerry Greenfield. Yes, that Ben & Jerry — the guys who brought us Cherry Garcia and Chubby Hubby. And as if speaking after the famed ice cream giants wasn’t tough enough, Ben and Jerry brought the entire audience ice cream for breakfast AND lunch!

BenandJerrysicecream

But when Chuck is passionate about something, it radiates when he speaks. So when he took the stage at the Raleigh Marriott City Center to address the room full of business leaders, I knew it would only be a few minutes before their minds would shift from ice cream to LED lights.

The forum’s topic was “The Triple Bottom Line: 21st Century Leadership in People, Planet and Profit.”   And sure enough, within minutes, Chuck was telling it straight to the audience, saying “the cleanest and cheapest energy is the energy we never use.” Then he explained that LED lighting is really all about energy-efficiency with the big bonus of actually making good business sense, since LED lights can save businesses money on energy and maintenance costs. Chuck told earlier speakers who were discussing purchasing carbon offsets that LED lighting could’ve saved them about 50 percent of what they spent since it uses so much less energy than traditional lighting.

By then, Chuck’s passion was evident and he started ragging on the 130-year-old incandescent light bulb. “About the only useful place for this is on a shelf in a museum,” Chuck said as he lifted an energy-wasting 75 Watt bulb in the air. “It’s going to be about as popular of an idea as records.”

Chuck touched on investor-owned utility companies, saying that utilities are not incentivized to sell less energy. “We need to change the incentive structure so they can make money saving energy,” Chuck said. He also spoke about the need for raising standards that regulate energy efficiency. Why, he asked, are buildings required to have insulation and yet it’s OK to screw in energy-sucking lights? Good question.

ChuckNCCEO

And when it comes to being a leader in LED lighting, Chuck didn’t shy away from telling the audience how Cree stays ahead of the pack.

“We listen to what people say we can’t do and, basically, we just go do that,” Chuck said. “It’s been a really exciting source of innovation for our company.”

So while Chuck didn’t dish out any ice cream, he definitely served up some inspiration. But you don’t have to take my word on it. People who were at the event and/or reading Tweets from the event felt the same way:

ChuckTweetsFinal2

A big thank you to the folks who organized this year’s N.C. CEO Forum. And if you were inspired to learn more about the LED Lighting Revolution, you can do it here.