Comments on: Quantum Tunneling Composites Lead to a More Efficient Flashlight, And More! http://cleantechnica.com/2011/07/08/quantum-tunneling-composites-lead-to-a-more-efficient-flashlight-and-more/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Mon, 29 Dec 2014 15:30:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: Capt. Obvious http://cleantechnica.com/2011/07/08/quantum-tunneling-composites-lead-to-a-more-efficient-flashlight-and-more/#comment-102019 Tue, 19 Jul 2011 18:40:00 +0000 http://cleantechnica.com/?p=28449#comment-102019 To waste no electricity, you’d have to have electronic power conversion, i.e., changing the battery voltage into a variable current as with a switching converter. A variable resistor burns up power. Well, not much, and you save if you don’t need full power. And it is kind of a cool flashlight.

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