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

Experiencing Hiroya Kurata's Art

Finding moments of genuine peace can feel like a rare treasure these days. But what if I told you that a dose of serenity could be as simple as gazing upon a canvas? Hiroya Kurata 's work makes you want to slow down and find tranquility in daily life. His oil paintings look like delightful children's books or manga that whisper calmness through their composition, their palette, and the very essence of what they depict. Hiroya's canvases are basically a visual diary, capturing little snippets of moments he spends with his family in ordinary places. And, in a way, his art provides a pause button, a moment to simply be in the presence of something beautiful and serene. His work has been exhibited extensively in solo and group exhibitions across the globe, from New York to Hong Kong, Tokyo, and London. Waiting , his debut solo show at Carl Kostyál , is on view until August 2, 2025.
Post a Comment
Read more

So, have you given Chloe Qisha a listen yet?

What I love about the Malaysian-born singer-songwriter is her knack for crafting those sad/happy songs – music that makes you want to cry and hit the dance floor at the same time. Chloe writes about love, anxiety, and self-acceptance with such wit and honesty. Her beauty is also undeniable – a perfect blend of modern allure and timeless Asian elegance. Her looks shine through with such grace and an effortlessly cool confidence. Here is my favorite.
Post a Comment
Read more

Press Play Again

You know that feeling when you stumble upon an old movie you haven't seen in years? It's like finding a dusty photo album and flipping through the pages, only instead of bad hairstyles, you're greeted with hideous special effects and awful dialogue. Also, the dramatic tension I remembered as nail-biting was now… well, a little slow-paced. But the truly entertaining part of rewatching a movie is that you notice things you never did before. For example, in Midnight Cowboy , I didn't know that the guy who gave Joe Buck (Jon Voight) a blow job was played by Bob Balaban, who later became known for his role as Russell Dalrymple, the fictional president of NBC in Seinfeld . Released in 1969, Midnight Cowboy is a raw, sometimes uncomfortable, often heartbreaking, but ultimately deeply human. And seriously, the chemistry between Ratso Rizzo (Dustin Hoffman) and Buck is pure gold. Rewatching a movie is like visiting an old friend. You know their idiosyncrasies, their stories, bu...
Post a Comment
Read more