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AC to DC to conserve energy, good idea or bad?

 
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Meowth
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PostPosted: Mon Jul 25, 2005 6:09 am    Post subject: AC to DC to conserve energy, good idea or bad? Reply with quote

Will I conserve more energy by using a 120v AC 60watt reading lamp, or
a lamp that has a built in transformer that has an input of 120v AC to
12v AC which uses a 12v 60watt bulb?
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absorbentgnome



Joined: 30 May 2005
Posts: 51
Location: Cardiff, UK

PostPosted: Mon Jul 25, 2005 10:18 am    Post subject: Reply with quote

The 120V AC bulb will be more 'efficient' because it is directly connected to the power source. The 12V AC bulb requires the use of a transformer, which will waste some energy as heat.
The difference, however, is minimal. You'd be far better off using an energy saving fluorescent bulb/tube if you are worried about saving energy.
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PostPosted: Mon Jul 25, 2005 11:39 am    Post subject: Reply with quote

ur gay
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absorbentgnome



Joined: 30 May 2005
Posts: 51
Location: Cardiff, UK

PostPosted: Mon Jul 25, 2005 12:07 pm    Post subject: Reply with quote

Anonymous wrote:
ur gay


Retard.
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PostPosted: Tue Jul 26, 2005 3:56 am    Post subject: Reply with quote

absorbentgnome wrote:
The 120V AC bulb will be more 'efficient' because it is directly connected to the power source. The 12V AC bulb requires the use of a transformer, which will waste some energy as heat.
The difference, however, is minimal. You'd be far better off using an energy saving fluorescent bulb/tube if you are worried about saving energy.


Thanks for the heads up
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PostPosted: Thu Jul 28, 2005 6:53 pm    Post subject: AC to DC to conserve energy, good idea or bad? Reply with quote

current=watts/volts.
The lower the voltage the higher the current.
120v better as a result.
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