Comments on: ‘MIT Wirelessly Powers a Lightbulb’: E-book hardware possibilities? http://www.teleread.com/ebooks/mit-wirelessly-powers-a-lightbulb-e-book-hardware-possibilities/ News & views on e-books, libraries, publishing and related topics Fri, 10 Feb 2012 01:44:23 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Richard Ahlquist http://www.teleread.com/ebooks/mit-wirelessly-powers-a-lightbulb-e-book-hardware-possibilities/comment-page-1/#comment-400526 Richard Ahlquist Fri, 08 Jun 2007 17:43:19 +0000 http://www.teleread.org/blog/?p=6679#comment-400526 While I find the technology has a neato factor the 40% efficiency is horrible. Imagine if the energy demands of the US went up 60%.... Cute, but not very effective. my AC Adapter for my old Jornada 540 outputs 7 Watts. For the PDA to get the same wattage from this tech it would be consuming 17.5Watts. Thats almost enough according to some sources to power two LED replacement bulbs capable of providing equivalent lighting to two 75 watt incandescent bulbs. ( http://www.treehugger.com/files/2007/02/led_bulb_replac.php ) While I find the technology has a neato factor the 40% efficiency is horrible. Imagine if the energy demands of the US went up 60%….

Cute, but not very effective. my AC Adapter for my old Jornada 540 outputs 7 Watts. For the PDA to get the same wattage from this tech it would be consuming 17.5Watts. Thats almost enough according to some sources to power two LED replacement bulbs capable of providing equivalent lighting to two 75 watt incandescent bulbs. ( http://www.treehugger.com/files/2007/02/led_bulb_replac.php )

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