Roundup by Greentech’s Doug Widney
http://www.greentechmedia.com/articles/read/The-Top-Ten-LED-Lighting-Developments-of-2012
http://en.wikipedia.org/wiki/LED_lamp
Not a week goes by without an interesting gem at Greentech.
http://www.greentechmedia.com/
Here are some LED lamps which are within the margins of USB (and by transference 802.3af). Note they have a 120VAC adapter and can be converted (with some wiring work).
IKEA Jansjo white desk work light
http://www.ikea.com/us/en/catalog/products/90214233/
Target Room Essentials 074-14-0009 black desk work light
http://www.target.com/p/room-essentials-led-table-lamp-black/-/A-13557999
Picture on web is not quite a match to what is in store.
Wiring work to retrofit with USB connector and use cable and USB 1A wall adapter like
http://www.monoprice.com/products/product.asp?c_id=108&p_id=8857
Puzzle: Why do LED lamps (in the 5W range) not simply use USB power connector format and include a USB wall adapter for region? USB would be cheaper and easier for everyone in supply chain.
http://hardware.slashdot.org/story/12/07/24/028230/usb-30-100w-power-standard-seeks-to-end-proprietary-chargers
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