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Topic Title: Low Voltage Lighting
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Created On: 24 November 2010 08:34 PM
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 24 November 2010 08:34 PM
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Southwest1984

Posts: 19
Joined: 21 July 2009

Hi Guys,

As I may of mentioned before I am a rep for a national wholesaler and have a question regarding the energy consumption of 12v low voltage lighting. Am I right in saying that if you ran a 50w mains powered light compared to a 50w 12v light, the low voltage light would cost less to run due to the voltage?
 26 November 2010 06:48 AM
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normcall

Posts: 8144
Joined: 15 January 2005

There I was thinking that 50w at 230v used a similar amount of energy as 50w at 12v.
Now, as Alan says, if you must transform the voltage, then use the still to be invented lossless transformer.

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Norman
 20 December 2010 07:37 AM
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dickllewellyn

Posts: 1150
Joined: 19 March 2010

You do however produce more lumens per watt with 12v halogen lighting, so with a bit of calculation, you may be able to prove it marginally more economical and ecological Particularly when you replace only one lamp a year as opposed to 4.

May be more prudent to fit GU10 now though, as retro-fit LEDs are coming on in leaps and bounds!

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Regards
Richard (Dick)

"Insert words of wisdom and/or witty pun here"
 18 November 2011 04:12 AM
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ethan7557

Posts: 1
Joined: 18 November 2011

As Normcall have mentioned, the same 50watt lighting will consume the same power, no matter what voltages it runs, if for the 12v bulbs, you might also need a transformer, which also will consume more or less power. I think the most important point for you to promote the 12v lighting is the lumen efficiency, like if the 12v lighting is made of LED, efficiency of 12v led lighting can be over 100lm/w, over 10 times higher than efficiency of incandescent bulbs, 2 times higher than efficiency of CFL bulbs.
more detailed 12v led lighting advantage:

Edited: 18 November 2011 at 03:36 PM by ethan7557
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