Running Tv On 12v Or Inverter

Discussion in 'TV & Satellite' started by Dave and Ginny, Jul 8, 2015.

  1. Dave and Ginny

    Dave and Ginny Funster

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    Been looking at various TV/DVD combos to replace my current Avtex which is on it's way out.

    I currently run my Avtex on the 12volt system but many of the TV's I'm looking at don't appear to run on 12 volt (although most technical descriptions are vague so they may be stepped down through a power supply adapter), but some seem to have very low power requirements. A few I'm looking at for around £100 mark as low as 18 watt which would see to be fine for running from my 300w inverter.

    Whats the general consensus on 12volt TV versus running 230/240 via inverter?
     
  2. scotjimland

    scotjimland Funster Life Member

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    12v.. is preferable as inverters are not 100% efficient..

    buying a new TV I wouldn't consider a 230v only, but most smaller TVs come with a 12v brick ..

    the Finlux 19" is 12v and only 20watt.. it is supplied with a 230v/12vdc brick..


    Edit .. just for interest..
    There is a very good reason why most small TVs are 12v.. it makes it a lot cheaper to manufacture with less safety concerns and getting it approved for 230v ac

    also, many use a generic 230v/12vdc brick.. so keeps costs down..
     
    Last edited: Jul 8, 2015
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  3. NickNic

    NickNic Funster Life Member

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    A 12v one is a better bet if only because inverters aren't efficient. Stepping 12v up to 230v and then back down to 12v again seems pointless if you don't have to.
     
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  4. Forestboy

    Forestboy Funster Life Member

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    Get a Finlux 12v combi we recently bought one on ScotJimland recomendation and its a fantastic tv at a good price.
     
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  5. Bluestar

    Bluestar Funster

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    As above, most TV electronics are low voltage so very inefficient to boost up to 230v to then convert down to 12v to run the TV.
     
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  6. Dave and Ginny

    Dave and Ginny Funster

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    I think it's going to be the Finlux as it seems to tick all the boxes and is coming highly recommended (y)
     
  7. tonka

    tonka Funster Life Member

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    Think about it....
    Even If you have a real bad Invertor that looses as much as 20%. and use a Tv at 20w...
    Thats 20w plus 20% for loss (4w). total. 24w..
    It's nothing on the scale of things...
    In my previous van I had a Cheap Asda mains Tv and a 150w invertor, worked perfect for years....
     
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  8. The Wino

    The Wino Funster

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    If you get a different one to the finlux check the power adapter voltage a lot are now 15 or 19v as based on computer monitors so wont work on 12v!!!
     
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  9. Baycott

    Baycott Funster

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    Another vote for the Finlux combi (y)
    It's the best TV we have had in a caravan or motorhome in 20 years.
     
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  10. Moodybrook

    Moodybrook Funster

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    I had to emergency purchase a TV in Luxembourg. As far as I understand there is just one place selling 12v TV's in Luxie. We had a right ole treasure hunt ! Got a 12v Philips 22" HD (NOT HD ready, proper HD) Excellent picture and good sound. More expensive(lots more) than the Finlux but necessity prises the purse open as wide as the situation dictates. :(

    It doesn't have a dvd player but we never use that as we run films and record to a removable hard drive. :)
     
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  11. scotjimland

    scotjimland Funster Life Member

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    painful I expect .. :LOL:
     
  12. steevie

    steevie Funster

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    Any inverter uses power to do its job, so obviously a 12v TV is going to use less, but finding them can be difficult, and it's something they don't seem to put in the spec on the box. We got ours from Asia after someone on the fins terms forum said they were 12v. It is a 19" and cost £99, but you have to make up a 12v lead yourself. It's been great for nearly a year now, and uses very little power.
     
  13. Moodybrook

    Moodybrook Funster

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    Aberdonian painful. To the quick and beyond :( :cry:

    BUT ! Mines is bigger than yours !! :LOL:
     
    Last edited: Jul 9, 2015
  14. Bacchus

    Bacchus Funster

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    I have been thinking about this; I have opted for the inverter + 240v TV option

    I know it is less efficient, and the Avtex army will come and get me, but, whilst I am sure the Avtex is a superior product, this will only be used for a few weeks a year and I have bought a 1500w inverter which means that I can use it to power a micorowave and the mem-sahib's hair things. Much more versatile arrangement IMHO.

    TV is a Bush 19" combo, £99 from Argos... (you get what you pay for, but it will probably only be used for watching re-runs of Blackadder and similar)
     
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  15. Dave and Ginny

    Dave and Ginny Funster

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    I still haven't got one yet...does the one you have go straight from TV to 230/240 or via a little transformer box?
     
  16. Bacchus

    Bacchus Funster

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    The lead goes straight from the TV to the 240v - lead and plug are all integrated (don't know what will happen when SWMBO eventually runs over the lead with the vacuum cleaner!!!!)

    Haven't managed to get a picture from the aerial/satellite dish yet, but it's certainly ninety nine quid well spent when watching Red Dwarf...
     
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  17. Bacchus

    Bacchus Funster

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    As an addendum to my earlier comments...

    I have just been out and rigged up the inverter, it all works fine, I can watch DVDs etc HOWEVER, for some reason the TV doesn't seem to respond to the remote control properly when it is running on the inverter.

    I have seen this before with the touchpad on a laptop not working when charging via inverter, with the laptop the solution was just to use a mouse. With the TV I suppose I can use the buttons (my old Hymer isn't SO big that I can't get up and switch channels manually), but obviously can't access some of the "richer" features from the limited buttons on the TV itself.

    Any suggestions welcome...?
     
  18. travelling wilbury

    travelling wilbury Funster

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    if youre sure its the inverter thats causing these changes, i would send the inverter back for a swap out....check again, if still an issue, try a different inverter....

    it is a pain to get at things like channel tune etc without a remote...
     
  19. Bacchus

    Bacchus Funster

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    Hi @travelling wilbury - luckily my van is so small that a remote is almost superflous (c:

    I managed a month in France after that post and didn't even switch the TV on although the inverter came in very useful for cooling beers* in a cold box on 240v whilst travelling when I had fridge issues (resolved now)


    *... and maybe some food...
     
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  20. rikfos

    rikfos Funster

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    120 watt inverter used with 240v dvd combo, never had any problem
     
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