http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/ Engadget Comments for Rockefeller Center Christmas tree goes LED http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 22nd 2007 3:52AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 22nd 2007 4:49AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 22nd 2007 5:05AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 22nd 2007 5:15AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/
I know that in the US everything is bigger - but that much?

Now the LEDs: 1297 kWh for 8 hours and 30 000 LEDs - this would be high power 5 W LEDs. I doubt that they would use more than 1 W LEDs, while a typical super bright LED was e.g. 4 V * 20 mA = 0.08 W. Let's assume 0.1 W per LED, this would be 3 000 W in total or about 30 kWh per day, running for 10 hours a day.

Are those numbers above real?]]>Nov 22nd 2007 6:56AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 24th 2007 6:53AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/
Before there were 25 000 bulbs, 7.5 W each (in 1949 it were 7500 bulbs) ->
187 500 Watt. These are more reasonable numbers (75 kWh a day, 10 hours a day, 42 days) - and a bill of $130 only for electricity. (how much is a kWh in the USA? I assumed 0.1 $/kWh)]]>Nov 22nd 2007 7:06AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Dec 3rd 2007 6:27PMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/
Source:
http://appledaily.atnext.com/template/apple/art_main.cfm?iss_id=20071122&sec_id=4104&subsec_id=11867&art_id=10448906]]>Nov 22nd 2007 10:31AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/
Like they're too bright and I don't know, they kind of make me feel like I'm in a store.]]>Nov 22nd 2007 3:35PMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/
I prefer the traditional fur tree with white lights wrapped round :)]]>Nov 22nd 2007 7:49PMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 23rd 2007 12:51AMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Nov 23rd 2007 1:15PMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.thetreenyc.com/smartTree.php, the panels create a "70Kwh generation station". With the tree consuming 1,300 Kwh per day, does this actually even make a dent? I don't get it...]]>Nov 27th 2007 4:55PMhttp://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/http://www.engadget.com/2007/11/22/rockefeller-center-christmas-tree-goes-led/Dec 16th 2007 8:59PM