LED Shakelight removes need for batteries

A flashlight containing a high-power white LED is powered by mechanical shaking.

Content Dam Leds En Articles 2005 11 Led Shakelight Removes Need For Batteries Leftcolumn Article Thumbnailimage File
Xiamen EDI Technologies (EDI-T), based in Xiamen, China, has developed a patented battery-free LED Shakelight containing a single high-power LED.

The flashlight is powered by 90 seconds of horizontal shaking; this causes a magnet to move inside a coil, and the resulting charge is captured by an energy storage device which can then be used to power the LED light source.

An EDI-T spokesperson told LEDs Magazine that the company imports Cree's LED chips, which are packaged by a factory in China.

The flashlight provides 1-2 hours of bluish-white LED light of 10,000 lux at initial switch-on, and has a light beam with a circular diameter of 4.6 ft (1.4m) at 5-10m distance.

Customers in the UK can contact Steve Dycer on 01963-362137 for more information, or alternatively contact Billy in Xiamen, China on +86-592-5773981.

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