Power Consumption in LCD Tvs and LG LCD

Hello,

I'm deciding to buy a http://asia.cnet.com/reviews/home_av/tvs/0,39037585,44735735p,00.htm
I saw in many articles that LCD TVs use less than 150W. In this TV it says 230-240V 1.5A. So I think it's around 340W ?

Why is that it seems it's using like a Plasma screen ?
sahanlakAsked:
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JohnHamlingCommented:
Where did you get the 1.5A from? I've had a quick look and according to the LG spec its power consumption is 150W.
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JohnHamlingCommented:
If your interested this is the manual I looked at from the lG site

http://www.lg.com/uk/support/product/support-product-profile.jsp?customerModelCode=32LH2000&initialTab=documents&targetPage=support-product-profile#

It covers many models but includes the 32LH20** models in the specifications section at the end.
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sahanlakAuthor Commented:
I went to the Local LG store, in the back side the sticker was displaying 1.5A. And didn't had any W mentioned. Can u give me a link to spec page pls
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JohnHamlingCommented:
Assuming I've got the correct model, I've already poted the link.
I can only assume that the 1.5 A is an absolute maximum current that may only be achieved when first switching on and then under general use will be closer to the 150W. Of course the actual power will vary under normal use and will change with things like adjusting brightness.
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JohnHamlingCommented:
I have found another manual specificaly fro the 32LH20R but unfortunately it doesnt specify the power consumption, although it does talk about energy saving mode.

http://www.lg.com/ph/support/product/support-product-profile.jsp?customerModelCode=32LH20R&matchedModelCode=NOT_MATCHED&searchEngineModelCode=32LH20R&initialTab=documents&targetPage=support-product-profile#
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sahanlakAuthor Commented:
Checked your previous manual. Yea it says 150W. But why does that sticker says 1.5A. Even though they haven't specified if it's max or min ...
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JohnHamlingCommented:
I wonder what the voltage specification is in the sticker, if it is 110v - 240v then the 1.5A would be the max requirements at 110v giving approx 150W
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sahanlakAuthor Commented:
Same 150W for 240V right ?
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JohnHamlingCommented:
In fact looking at the second manual (32LH20R) even though it doesnt specify the power it does specify the input voltage range as AC100-240v so that would tie up with a maximum of 1.5A you have seen on the sticker (i.e 1.5*100 = 150w)
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sahanlakAuthor Commented:
Ah so when voltage get decrease the amperes get increased to maintain the Ws. So the min 100V needs 1.5A and that's the max As the TV wud eat. so when we give 240V then the amount of amperes will get decreased.
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JohnHamlingCommented:
Yes 150W for 240v.
If the TV is running at the minimum voltage of 100v then it would draw 1.5A
If its run at a higher voltage then the current drawn reduces but the power remains the same at 150W
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sahanlakAuthor Commented:
Yep your right. Thanks
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