"Go beyond the power of the advent of no power LED lamp

Have you ever thought of using his own body as a power? Miniature flashlight Lumen can make your dreams come true. Lumen is a super mini flashlight, not connected to the power supply, do not need batteries, as long as you use your finger, it will shine. Its designer Ross Zhuravskiy said, if used properly, this small flashlight can be "permanent" lighting.

Lumen flashlight without power, when it detects the temperature difference will be light

Small flashlight inside TEG (thermoelectric generator), to generate a current

The Lumen is equipped with a thermoelectric generator, the ceramic rod, when it detects a temperature that produces a current. Its working principle is very simple, when you use your fingers to touch TEG, it will form the upper and lower ends of temperature, thus generating electricity to light a flashlight bulb. Designer Ross Zhuravskiy said, the body temperature is about 98 degrees (F degrees Fahrenheit), the ambient temperature is about 82 DEG F, the current temperature can make Lumen produce about 15 mA, 3V, Lumen built-in enough to light the size of a 5mm CREE LED lamp, the light output can be up to 3000 mCd. When the temperature difference is greater, the excess energy will be stored.

Lumen shell optional two materials, one is aluminum, a titanium, respectively, weighing about 35 grams and 45 grams. In addition to the different materials, Lumen is also divided into ordinary version and an advanced version, a version of the built-in advanced tritium gas pipe, can continuously light for more than 10 years, therefore, even in the dark room, you can easily find the use of tritium gas emitting "small guy".

A tritium tracheal Lumen in the dark room

At present, Lumen raised more than $120 thousand has gained support in the Kickstarter platform, and this number is increasing. According to the Kickstarter page, sponsors of the event in February 2016 will continue to send products around the supporters. (translation / Chinese LED Flora)

LED more information, please click on the Chinese LED network or WeChat public account (cnledw2013).