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post #21 of 49 (permalink) Old 12-03-2008, 05:08 PM
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post #22 of 49 (permalink) Old 12-03-2008, 06:01 PM
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Are they this business?
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post #23 of 49 (permalink) Old 12-03-2008, 06:11 PM
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or this?
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post #24 of 49 (permalink) Old 12-03-2008, 06:13 PM
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OK, 1st of all do not leave any incandescent light fixture on unattended for long periods of time. It is a fire hazard. The rating on the bulb is similar to the amount of heat it produces when it is burning. Would you turn on a 600 watt space heater and leave for the day?
Next, If all of your under cabinet lights were fed from one transformer it would draw 50 amps we have wired several low voltage track lights that we have had to run #6 wire to to feed them, rated for 60 amps. Everyone else here is correct watts is watts the voltage does not matter. The reason they use different voltages is to make it safer in some applications and cheaper in others. When installing some lighting systems, fixtures less then 48 volts, the wiring system changes, we can use exposed wires and terminals instead of junction boxes and conduit systems. When installing feeder panels and wiring large machines we increase the voltage to bring down the amperage so we can use smaller wire pipe breakers etc... it is a lot more cost effective for the consumer and easier on my back.
Now, to figure how much it would cost you to run it there is a formula for that.

Energy= Power x time

Or


E = (watts/1000)xtime

In this example your wattage is 600/1000 because power is billed in kilowatt hours times the amount of time you will be leaving them on we shall use 8 hours in this example

E=(600/1000) x8 which equals 4.8 kilowatts if your utility charges you .05/ kilowatt it will cost you $0.24 / 8 hours you leave them on.

You can use this formula to calculate any appliance based on usage/ and the power it consumes.

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post #25 of 49 (permalink) Old 12-03-2008, 06:27 PM
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Here is a nice link with many questions answered for these kind of lights (Cabinet lights)
Frequently Asked Recessed Lighting Questions by W•A•C
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post #26 of 49 (permalink) Old 12-03-2008, 07:01 PM Thread Starter
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OK, 1st of all do not leave any incandescent light fixture on unattended for long periods of time. It is a fire hazard.
Well, people leave outdoor incandescent lights on all the time, right? And indoor ones for that matter. Although I am careful about the application, and I thank you for your post & information...

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Are they this business?
The undercabinet ones are the first kind; most of the recessed ceiling ones are the second kind; a fair number of fixtures have the GU10 which look like this:

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post #27 of 49 (permalink) Old 12-03-2008, 07:04 PM
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The ones you are showing are 240V
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post #28 of 49 (permalink) Old 12-03-2008, 07:07 PM Thread Starter
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LOL those are British.... they mess up everything
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post #29 of 49 (permalink) Old 12-03-2008, 07:15 PM
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LOL those are British.... they mess up everything
British? 240V is 240V I can assure you it's 240V in France
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post #30 of 49 (permalink) Old 12-03-2008, 07:24 PM
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British? 240V is 240V I can assure you it's 240V in France
Member countries of the European Union are presently striving to achieve a common mains standard.
From 1 January 2004 the mains supply should be 230V (-6%, +10%), 50 Hz (±1%). ie a range of 216.2 - 253V
This replaces the UK's former specification which was 240V ±6% (ie a range of 225.6 - 254.4V)

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