Jacksonville Jaguars Fan Forums

I just basically need to know the total wattage of the tv.. it says 100-240 volts 3 amps on the back of it.. the model number is sceptre x-405bv-f..

Thank u guys I appreciate the help jags fans are the best..

Quote:I just basically need to know the total wattage of the tv.. it says 100-240 volts 3 amps on the back of it.. the model number is sceptre x-405bv-f..

 

Read Power and conclusion:

 

http://www.pcmag.com/article2/0,2817,2456763,00.asp

 

I never heard of this brand before.

51 to 57 watts depending on mode.

Quote:51 to 57 watts depending on mode.

 

How do you get that?

Quote:How do you get that?

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

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.

Thanx

Here is the manual guide..

<a class="bbc_url" href='https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.sceptre.com/pub/Manuals/LEDHDTV/X405BV-FHDR-UM.pdf&ved=0ahUKEwjOtLOZtIHPAhXEYiYKHZwvADMQFggbMAA&usg=AFQjCNGdGsw0wRU2aoa4FHPYuvU-aduC-Q&sig2=HJIrESH7_0R87AQ0J0K_-Q'>https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.sceptre.com/pub/Manuals/LEDHDTV/X405BV-FHDR-UM.pdf&ved=0ahUKEwjOtLOZtIHPAhXEYiYKHZwvADMQFggbMAA&usg=AFQjCNGdGsw0wRU2aoa4FHPYuvU-aduC-Q&sig2=HJIrESH7_0R87AQ0J0K_-Q</a>


Scroll down to specs where it says


Power input: 100-240v 3 amps max..


Ur obviously gonna have to download it..

Quote:Here is the manual guide..<a class="bbc_url" href='https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.sceptre.com/pub/Manuals/LEDHDTV/X405BV-FHDR-UM.pdf&ved=0ahUKEwjOtLOZtIHPAhXEYiYKHZwvADMQFggbMAA&usg=AFQjCNGdGsw0wRU2aoa4FHPYuvU-aduC-Q&sig2=HJIrESH7_0R87AQ0J0K_-Q'>https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.sceptre.com/pub/Manuals/LEDHDTV/X405BV-FHDR-UM.pdf&ved=0ahUKEwjOtLOZtIHPAhXEYiYKHZwvADMQFggbMAA&usg=AFQjCNGdGsw0wRU2aoa4FHPYuvU-aduC-Q&sig2=HJIrESH7_0R87AQ0J0K_-Q</a>

Scroll down to specs where it says

Power input: 100-240v 3 amps max..

Ur obviously gonna have to download it..

<a class="bbc_url" href='http://www.sceptre.com/overview-96.html'>http://www.sceptre.com/overview-96.html</a>


Under Power Cosumption it says 72w max, 61w typical.

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

Okay...Ill bite. Why would you need to know the wattage of a tv?

Quote:Okay...Ill bite. Why would you need to know the wattage of a tv?

Maybe the extension cord running from his living room to his neighbors is rated at a different wattage.. duh..

Quote:Maybe the extension cord running from his living room to his neighbors is rated at a different wattage.. duh..

This is why I ask...to learn new things!

Be careful. Sometimes, the more you learn, you can't unlearn..