On Jan 27, 10:21 am, Terry wrote:
On Sun, 27 Jan 2008 08:13:03 -0800 (PST), ransley



wrote:
On Jan 27, 10:05 am, Terry wrote:
On Sun, 27 Jan 2008 07:30:36 -0800 (PST),
wrote:

I use three, 300 watt 12 volt Maulibu type transformers to light my
yard and walkway lights around my home.

I was under the impression the reason one would use 12volt instead of
line voltage was the 12v was less costly to run.

How do I determine how much power each of these is drawing (per hr?)
so I calculate my cost per month. I don't think it will matter, but
one of them is only drawing about 160 watts. Each of the others is
near their 300 watt limit.

Thx

12V lights are cheaper to "install" than standard 120V lights because
of the cheaper materials involved.

300 x 3 = almost a kilowatt. The average cost per kilowatt, last time
I checked, was close to a dime. So you pay about a dime an hour to
run your 3 lights.

How did you come to the conclusion that one of your lights is only
drawing 160W? If you have a 300W lamp in the fixture and are only
getting 160W then something is wrong.

he said his transformers were using near 760 w, a dime-10c for
electric, many pay .15-.18c per Kw, few pay 10c

I live in Georgia. It is still a dime, but I see now that is well
below average.

http://www.eia.doe.gov/cneaf/electri...able5_6_a.html

Btw I could not find this information at my local utility company's
web site.

Your chart seems to show that a dime is really close to average,
everywhere but the New England and Mid-Atlantic states, and
California.

JK