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

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

The Adorable Sculptures of Yen Yen Lo

These images are from a series of wall sculptures created by Yen Yen Lo . Here you can see her intricately textured ceramic pieces, looking downright adorable. Yen Yen Lo's eye for the unique and whimsical is delightful. Apparently they are not intended for kids under 16. Fifteen-year-olds cannot be trusted with fragile stuff. Get them a Funko Pop instead.
Post a Comment
Read more

Hand-Painted Movie Posters by Tony Stella

In the 70s and 80s movie theaters in Manila were usually standalone buildings with nice seats and red curtains. To sell tickets, cinemas needed to advertise their offerings. But they did not have the original posters, or the means to print alternatives. So they made their own, commissioning local artists to hand-paint them. I really miss those hand-painted posters and billboards, which conveyed an artistry that was a form of visual hyperbole. But hand-made objects always have a way of returning. In this digital age, people will always look for things made by hand. I recently stumbled across the work of Tony Stella, whose genuinely cool movie posters have caught the eye of film enthusiasts and art lovers worldwide. He likes to work in watercolor and ink wash but sometimes he will make an oil painting, depending on the film. Tony's very active on social media, and his Tumblr blog contains a massive collection of illustrated movie posters that are often better than the original. ...
Post a Comment
Read more

Hey, Wanna Build a Guitar?

Six strings attached to a wooden frame, capable of producing simple tunes and intricate melodies. But before a guitar reaches the Royal Albert Hall or the dark corners of your bedroom, it undergoes a fascinating transformation at the hands of skilled craftspeople like Nick Branwell. Guitar making is more than just assembling pieces of wood and strings; it's about understanding the connection between materials, design, and sound. It's a craft that requires years of dedication and a deep passion for music. The result is an instrument that is not only beautiful to look at but also capable of producing music that can move and inspire.
Post a Comment
Read more