Skip to main content

Powered by body heat, this tiny flashlight doesn't need batteries


For the past ten years or so, I've made it a habit to carry a tiny penlight in my pocket whenever I travel. I wouldn't consider myself a hardcore flashlight enthusiast, but when I was younger I used to collect flashlights of different shapes, sizes and output colors. I still have them, lying somewhere in the house, ready for action in case of a zombie apocalypse.

If you're looking for a small flashlight with enough light output to find objects in the dark but would rather not keep supplying it with batteries, you might be interested in Lumen. It doesn't need any external energy source except your body heat. Ross Zhuravskiy is using Kickstarter to raise funding for his creation, and with 26 days until his initiative closes, he officially surpassed his initial $5,000 goal thanks to 477 backers. So how does it work?
"Lumen has relatively simple work principle - you touch TEG (Thermoelectric Generator) - small ceramic bar that can produce electric current when we provide temperature difference between upper and lower parts of TEG. 
In my application difference between temperature of your body (about 98 °F) and environment (at least 82 °F) is enough to generate power for single led. Metal body of Lumen serve as a radiator."
Check out the video below to learn more about this eternal flashlight.


Labels:

Comments

  1. Samir SutradharNovember 18, 2015 at 9:13 AM

    Without batteries a flashlight is so modern. I think its a fashionable flashlight. Thanks for describing in details. Nice and instructive post.......

    ReplyDelete
  2. UnknownFebruary 15, 2016 at 4:13 AM

    I love reading blogs posted here.Thanks.

    bunded fuel tank hire & generator maintenance

    ReplyDelete

Post a Comment

Popular posts from this blog

When chocolate meets art

I heard it's National Chocolate Day, so I thought I'd share this video about Orlando's newest and sweetest attraction.
Post a Comment
Read more

Italy's True Movie Poster King

What you see here is the hand-crafted magic of Renato Casaro, the late Italian designer who practically defined an era of cinematic cool. His work wasn't just advertising; it was art. Casaro's journey into becoming one of the most recognizable poster artists wasn't by chance; it was a pure obsession. As a kid, he was fascinated by billboards, trying to mimic the styles of Norman Rockwell and Angelo Cesselon. Think of a teen so determined that he was drawing right onto the walls of a local cinema just to snag a few free tickets. Casaro created posters for a lot of Spaghetti Westerns. His big break came with A Fistful of Dollars in 1964. The movie starred Clint Eastwood and was directed by Sergio Leone. The poster didn’t just promote the film; it helped make it a global hit. Naturally, Leone came calling again, commissioning posters for My Name Is Nobody (1973) and the epic crime saga, Once Upon a Time in America (1984). A Casaro poster is easy to spot because of his uniqu...
Post a Comment
Read more

From Puli Peaks to Picture Books

Ever see art that makes you want to step right inside and look around? Meet Shih-Yu Lin, a Taiwan-born illustrator whose work does exactly that. I came home one evening, scrolling my phone, expecting just the usual noise. Then I found his drawings. His pictures burst with color and loose charm. They're lively, dreamy, and you can feel his happiness in every stroke. It’s rare to find art that doesn’t just show joy, but shares it—and I realized that’s what makes his work such a treasure. Shih-Yu was born in Taipei and grew up in Puli, a small mountain town that feels like a painting itself. After discovering his love for picture books, he earned an MA in Children’s Book Illustration from Cambridge School of Art in 2017. He’s been drawing nonstop ever since. Want to escape into a brighter, warmer world for a bit? Check out his Facebook . Don’t be surprised if you end up smiling the whole time.
Post a Comment
Read more