LED Shakelight removes need for batteries

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

Nov 11th, 2005
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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