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Old 11-07-2015, 10:18 PM   #15
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Quote:
Originally Posted by Lumatic View Post
I have a cheap inverter I have not used to run my TV. I don't know if it is pure sine or modified sine wave output. Is a modified sine wave a no no for a TV? How about a laptop? How about the fridge? I have regularly run my Honda 2000i for 110. I think that puts out pure sine wave but am not sure, anybody?
A modified sine wave inverter will work just fine for your television and laptop. Most have low conversion losses, and low standby losses. Many of the pure sine wave inverters (but not all) have high standby losses, and that includes those WFCO units that Airstream supplies as factory equipment. Most (but not all) sine wave inverters operate at pretty high efficiency these days, like the modified sine wave ones... in the range of 90% + conversion.
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Old 11-08-2015, 08:10 AM   #16
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I paid $80 for my 22 inch led tv/DVD after rebate at tigerdirect last year. It was remanufactured. The 19 inch Element led tv only is $99 at Walmart. Both are 12v power but come from store with 110 transformer. I paid $ 8 from Amazon for plug in 12 v power plug for trailer. The Curtis draws less than 3 amps and no power loss from inverter. I'm sure the tv only models draw less.
I think this is the way to go. I do not advise paying the price for the tvs marketed as 12v and sold with included 12v cord. You will pay a premium for this convenience sand get nothing else than not having to identify 12v tv and shop for separate cord.
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Old 11-08-2015, 10:53 AM   #17
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This is the inverter we purchased in 2011 just to run a TV and charge computers off a 12v plug. 120w, lightweight and small footprint and its a pure sine wave inverter. I can run my current Sony 23" LCD that is rated at 95w.

DonRowe.com: Samlex PST-120-12, 12 Volt, 120 Watt Pure Sine Wave Power Inverter

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