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Old 02-07-2013, 06:49 PM   #1
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Question about 277V lighting.


I am looking into getting some lighting for my garage, and i came upon a really good deal on some HPS lights that run on 277V. I am not an electrician, i do plan on hiring one to install the lights, but before i do that i need to know if wiring these to my standard 120V residential electric supply. I have done some research, most people say replace the ballasts to 120V, but that would make this pointless as those cost much more money than i can invest. My question is, is there anyway to make these work without having the electric company come and modifying the supply? I have attached a picture of the ballast with all the info. Anybody have any suggestions? Thanks!
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Old 02-07-2013, 06:53 PM   #2
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Question about 277V lighting.


Quote:
Originally Posted by josh.wright1487 View Post
I am looking into getting some lighting for my garage...
Keep looking.

Quote:
i came upon a really good deal on some HPS lights that run on 277V.
Find someone who has a 480V 3 Phase service who can use them.
Maybe you can make a deal.

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Old 02-07-2013, 06:55 PM   #3
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Question about 277V lighting.


You can not get the power company to regulate the supply. 277 volts is from a 480 volt 3 phase system. If the luminaires do not have multi-tap ballasts they are useless to you.
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Old 02-07-2013, 07:20 PM   #4
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Question about 277V lighting.


You cannot connect luminaires to anything other than 120V, [edit] or less [/edit] in a residential setting.
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Old 02-07-2013, 07:23 PM   #5
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Question about 277V lighting.


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i came upon a really good deal on some HPS lights
Actually, those are Metal hallide, not HPS.

Last edited by Oso954; 02-07-2013 at 07:26 PM.
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Old 02-07-2013, 07:52 PM   #6
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Question about 277V lighting.


You can find those lights in 120 /240 at W.W Grainger. Make sure you have adequate circuitry for them.
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Old 02-07-2013, 08:28 PM   #7
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Question about 277V lighting.


www.e-conolight.com

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