Quote:Power and Conclusion

The X405 is a very modest power user. Under normal viewing conditions, the screen consumes 57 watts. In the "Power Saving" picture mode, which slightly dims the display, that number dips to 51 watts. For a 40-inch HDTV, this is very low power consumption, and quite friendly to energy-efficiency-minded consumers

 

I'm curious as to how that is calculated.  Obviously the TV uses DC power and has a built in power supply, but based on the AC figures in the OP power consumption would be much higher.  Now of course, the 3 amps spec is probably a "max" or "surge" spec, but doing the math... something isn't right.

 

Power (P) (watts) is calculated by multiplying voltage (E) x current (amps) or (I).

 

So assuming the television is being used in the U.S. we'll assume that voltage is 110.  Using the power equation.

 

P= E*I

P = 110*3

P = 330

 

If the television operates at the rated spec listed on it, then it consumes 330 watts of power.

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