Горячий камень, как источник питания для светодиода (видео на англ.яз.)

Jul. 13th, 2012 12:59 pm
[personal profile] alexp
This is an LED light that is using energy from a hot rock as the power source. Peltier modules are converting the heat to electricity and that powers an efficient LED oscillator circuit.

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Telegram: Александр Попов

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