12 volt HDTV

[solarboy]

Where to find a 12volt HDTV? Or the most energy efficient HDTV 120v for inverted power.

[Pblais]

LCD not Plasma for energy efficency. Smaller screens use less power. If you look at the 120 volt TV's you can read the watts consumed. Volts times Amps equals Watts. That will tell you DC amps required and the size of the inverter required.

[senormechanico]

Originally Posted by Pblais

LCD not Plasma for energy efficency. Smaller screens use less power. If you look at the 120 volt TV's you can read the watts consumed. Volts times Amps equals Watts. That will tell you DC amps required and the size of the inverter required.

And don't forget to add the bite taken by the inverter.

On the horizon:

Microvision: Accessory Pico Projector Displays
Microvision: Embedded Pico Projector Displays

BTW,
I own a pile of this stock.

Steve B.

[Celestialsailor]

In another thread somewhere around here, some people were stating that some LCD's were powered by a little 120AC to 12VDC wall adapter. So maybe an inverter is not needed.

[Liberty28]

Indeed. I checked out a cheap small screen at Best Buy and found a little transformer for the power. You just need to look at the power cord.

[knottybuoyz]

15" AC/DC LCT TV on e-Bay. Item #300207978384 for just under $300

[Pblais]

some people were stating that some LCD's were powered by a little 120AC to 12VDC wall adapter. So maybe an inverter is not needed.

The small ones don't take a lot of power and so a wall adapter can work well. We run our 15 inch LCD off a 300 watt inverter and it only uses a fraction of that. I would not pay $300 for a TV that comes with a 12 volt adapter. A basic 300 watt inverter can be installed easily and then you have it for other small AC devices.

[The Mons]

We have a 19 inch 12v HDTV with DVD built in. It is manufactured by Magnavox. We got ours at Circuit City. It used an adapter to go from 120 to 12. So we spliced into the original plug to the tv so it can operate directly off of 12 v. It uses about 4.4 amps according to the Link 20.

The TV is somewhat sensitive to voltage fluctuations. Initially, even turning on the water pump would cause the screen to black out while you can still hear what's going on.

To address this problem, I purchased a voltage stabalizer from Ampor. This prevents the blackouts with the exception of starting the engine or the generator. When a blackout occurs, you just have to turn it off and then back on again.

Another option is the Skyworth TV/DVD sold by West Marine and Target. You can get the 19 inch model for a little over 400 off of the Target web site. I would have purchased one of these myself had they been available at the time. However, I don't know whether or not they are susceptible to the blackout issue.

If you get one of those, I would be curious as to how well they operate.

[Rick]

The 120V to 12V converters accommodate a wide range of input voltage and frequency delivering a regulated 12V to the television. The television circuitry, therefore, may require a well regulated 12V (the actual value of which you do not know without measuring it) to operate properly. If the voltage goes too low the circuitry may "drop out" and require a turn-off and re-application of input voltage.

If the "12V" is too high, such as when charging batteries near 15V the input circuitry may overheat and be damaged. Because of this I agree with Paul in that it is safer and easier to merely use a low power inexpensive ubiquitously available power inverter to power the adapter and be done with it. No wire cutting or special "voltage stabilizers" are necessary.

[Therapy]

Originally Posted by senormechanico

And don't forget to add the bite taken by the inverter.

On the horizon:

Microvision: Accessory Pico Projector Displays
Microvision: Embedded Pico Projector Displays

BTW,
I own a pile of this stock.

Steve B.

I don't see it for sale.
What is the ticker symbol?
How is it doing?
Do you work with/for them.

[senormechanico]

Originally Posted by Therapy

I don't see it for sale.
What is the ticker symbol?
How is it doing?
Do you work with/for them.

Nasdaq ticker MVIS
Let's just say, "You have to be patient, but it looks on the verge."
No.

Steve B.