Rockefeller Center Christmas tree goes LED

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Martin Trautmann @ Nov 22nd 2007 6:56AM

When it's turned off at midnight, it might run e.g. from 4 to 12 p.m., having almost 500 000 W power consumption before? This would take fuses for 4000 Ampere at 110 V? Even more amazing...

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?

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