Question about wattage on sceptre 40 inch led tv..

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Question about wattage on sceptre 40 inch led tv..

jagshype
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#11

09-10-2016, 12:21 PM

Quote: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.

You don't use the outlet(input) voltage, instead the output voltage of the acdc adapter or powersupply. TVs 32 inch plus are normally 19 volts so 19v*3A= 57 amps

Messages In This Thread

Question about wattage on sceptre 40 inch led tv.. - by HERO OF THE DAY - 09-08-2016, 12:34 AM

Question about wattage on sceptre 40 inch led tv.. - by HERO OF THE DAY - 09-08-2016, 12:35 AM

Question about wattage on sceptre 40 inch led tv.. - by C'MON JAGS - 09-08-2016, 06:43 AM

Question about wattage on sceptre 40 inch led tv.. - by Jagwired - 09-08-2016, 08:32 AM

Question about wattage on sceptre 40 inch led tv.. - by jagibelieve - 09-08-2016, 02:34 PM

Question about wattage on sceptre 40 inch led tv.. - by Jagwired - 09-08-2016, 04:07 PM

Question about wattage on sceptre 40 inch led tv.. - by jagibelieve - 09-08-2016, 04:29 PM

Question about wattage on sceptre 40 inch led tv.. - by HERO OF THE DAY - 09-08-2016, 10:43 PM

Question about wattage on sceptre 40 inch led tv.. - by HERO OF THE DAY - 09-09-2016, 12:10 AM

Question about wattage on sceptre 40 inch led tv.. - by Senor Fantastico - 09-09-2016, 12:33 AM

Question about wattage on sceptre 40 inch led tv.. - by jagshype - 09-10-2016, 12:21 PM

Question about wattage on sceptre 40 inch led tv.. - by Bchbunnie4 - 09-10-2016, 12:44 PM

Question about wattage on sceptre 40 inch led tv.. - by WingerDinger - 09-10-2016, 01:17 PM

Question about wattage on sceptre 40 inch led tv.. - by Bchbunnie4 - 09-10-2016, 01:19 PM

Question about wattage on sceptre 40 inch led tv.. - by WingerDinger - 09-10-2016, 01:21 PM

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