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8 posts tagged with electricity and watts. (View popular tags)
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oh brother

Need a step-down converter for plugging a printer sold in the US (110V power) into a 3rd-world socket (240V power). I get the voltage part but watts and amps and such are a bit beyond my electronoobicity. [more inside]
posted by allkindsoftime on Jul 27, 2011 - 18 answers

The little PA system that could, I hope.

Will I blow up my PA system? A question of ohms, watts, speakers, amps and the love affair that almost tore them all apart. [more inside]
posted by otolith on Mar 13, 2010 - 12 answers

watt?

If I have a stereo amplifier that puts out 200 watts per channel, with two speakers per channel, how many watts per speaker?
posted by 31d1 on Dec 29, 2009 - 26 answers

Epson Artisan 800 All-in-One Printer bought in USA? How to use in U.K?

Just returned from fabulous 2 week holiday in New York. I Brought back Epson Artisan 800 All-in-One Printer from Staples costing $230. Unfortunately, I cannot use it in U.K., unless I plug voltage converter/transformer products. Has anyone else bought this set over there with more success? Any advice \ information appreciated. Please specify me What exact voltage converter product to buy & where to buy it from USA online store. Thanks. [more inside]
posted by omaralarifi on Jan 28, 2009 - 4 answers

Is my new (aftermarket) power adapter safe for my laptop?

Can I damage my laptop by using a power adapter that has a slightly higher wattage than the original adapter? The original adapter was 65W, and the aftermarket one is 70W. The voltage is switchable. My original adapter had a voltage of 18.5V, this one says that if I need 18.5V, I should choose 18V. Any chance of damaging the computer by using this one? [more inside]
posted by leticia on Nov 13, 2008 - 8 answers

Why doesn't wattage equal amperage times voltage?

Another air conditioning question for the summer! 4.8 A *110V=515W? [more inside]
posted by phoenixy on Jun 10, 2008 - 12 answers

Watts a volt, anyway?

Can anyone help me figure out what kind of power source I need for my outdoor art project? [more inside]
posted by xo on Jun 5, 2008 - 10 answers

Is it safe to keep a step-down converter turned on at all times?

I just picked up a 1000W step-down converter (220V-110V) to power a receiver after a 750W exploded in a blaze of glory when I turned it on one morning. I'd very much like to avoid this kind of thing again. So my question is, is it relatively safe to keep step-down converters turned on at all times? If so, will it constantly be using 1000W of power even when the receiver is turned off? I've heard differing opinions but found no definitive answer on the interwebs. Related, is it true that you should always have something plugged into the converter when it is turned on?
posted by DefendBrooklyn on Feb 17, 2007 - 7 answers

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