Whether it be for daily Carry (EDC), outdoor adventure or disaster preparedness, flashlights tend to collect items to be found at the top of the must-have. But one common aspect of these luminescent devices is that they are only as good as the batteries inside. If you've ever turned on a flashlight only experience a flood of frustrated disappointment, you can appreciate the possession of "eternal torch." Lumen is designed to be powered by body heat, never need batteries.
The finger-sized lumen flashlight uses a small thermoelectric generator (TEG) to drive a single 5 mm ultra bright Cree LED. We have seen the successful use of this technology in consumer products, such as practical with Power is PowerPot. Researchers have experimented with portable TEGs to extend the battery life of small appliances and, very famous, a Canadian high school student created a working prototype of a body heat powered flashlight as a science fair project. However lumen could be readily available to the public the first of its kind.
Lumen works to transform heat into electricity by a difference of body and ambient air temperatures. So when it happens to 82 º F (28 º C) to where you are, Lumen is designed to produce about 15 mA at 3 V, enough to power the LED for 3000 mCd (Milli production. Any excess energy is stored, the body of the lumen flashlight milled in an internal capacitor. aluminum or titanium, with a weight of 1.2 ounces (35 grams) for the former and 1.5 ounces (45 grams) for the latter. These metals are not only durable, but it doubled as a heatsink to help, the TEG work more efficiently.
While lumen may not be able to compete with a battery-powered brethren in shear light output, it looks more than enough light output feature to find objects to safely navigate, or during the reading in the dark. But with Lumen, you will feel a little greener, because you are so disposed, the power source and not a battery, which eventually ends up. EDC enthusiasts will appreciate it drilled hole through the floor, ideal for fastening to gearbox with split rings or paracord. And enjoy those a bit more gloss (for up to 10 years) decide to choose one equipped with tritium tubes.
The lumen flashlight is currently funding $ 5,000 goal in just two days to go with another 28 days after left on Kickstarter, with increased 326 per cent of its US. A pledge of $ 35 sets come with a lumen in machined aluminum, $ 45 for machined titanium. Units with tritium tubes run $ 15 more for each.
If you check the video below you can see that the creator of the processing equipment seems ready and waiting. So if materials purchasing, manufacturing and assembly go according to plan, may backers expect shipments of lumen flashlight, start sometime in February 2016th
Source: Kickstarter
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