Cree LED Revolution Blog

Cree and LED lighting are starting a revolution

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!

Chocolate bunny melts under incandescent light, survives LED light

Wednesday, March 31st, 2010

I was one of the most popular people at work this week after word spread that I was melting chocolate bunnies with light bulbs. People kept stopping by my desk to ask if the scuttlebutt was true. And when they found out it was true, several co-workers declared that I have the best job ever.

But I wasn’t melting the bunnies for fun, or even for a snack. This experiment was for the sake of the LED lighting revolution.

I can preach the benefits of energy-efficient LED lighting until my voice goes hoarse (which I’ve done) or type out blog posts, tweets and e-mails until my fingers callous. But, let’s face it, seeing is believing.

So I turned an empty office into a studio for my experiment. I placed chocolate Easter bunnies under a 12 Watt Cree LRP-38 and a 65 Watt incandescent floodlight. Both lights are designed to be hung from tracks. And, despite their Wattage differences, they’re a relatively fair comparison — a 12 Watt LRP-38 can replace Halogen bulbs up to 90 Watts (the folks at Furniture Row in Denver, Colorado replaced one thousand 90 W Halogens with LRP-38s).

Here's the setup.

Here's the setup.

The results were exactly what I expected. The bunny under the incandescent light melted into a pool of chocolate that spilled over the plate and onto the desk. The LED bunny kept his shape, with just the tip of his head becoming soft when I touched it with my fingertip. Watch the time lapse video to see the incandescent bunny’s downfall:

 

Once the incandescent bunny collapses, you can see my hand reach over and reposition the plate. That’s because that sucker fell backwards and out of the video shot, so I had to reposition him so we could all watch him melt.

I hope the video conveys how much more energy-efficient LED lights are. Since LED lights consume significantly less energy than incandescent bulbs (and even compact fluorescents), they don’t emit as much heat. In fact, LEDs are sensitive to heat, that’s why good thermal design is important for a long-lasting LED light, and that’s what the heat sink helps accomplish (the metal fins or slots that surround LED lights).

Hmmm. Perhaps I’ll have to start melting chocolate with light bulbs around every holiday. If you’ve got suggestions of what I should melt next, post them in the comments!