I'm looking at new LED TVs. I currently have 12 volt 19 inch LCD (non LED) tv which draws in the mid 40 watt range. I see new 24" 12 volt LED tvs offered which also rated in the mid 40 watt range.
The 120 volt TVs seem to be more energy efficient. I found a 24" Samsung LED TV rated at 27 watts. Additionally this TV has more features, is cheaper, and may be higher quality.
I have a 150 watt Samlex pure sine inverter rated at "peak" efficiency of 85%. What I'm wondering is how close to the 85% these inverters maintain efficiency when only asked to produce 27 to 37 watts (TV and DVD player)? I assume the peak efficiency comes at near maximum load. The idle current is a half amp. I assume this is constant loss regardless of load.
If its a break even proposition I'd rather go with the Samsung TV over the 12 volt alternatives. Is there any other considerations I should be aware of?
I run my home entertainment items from an inverter all the time in my setup. All my items are 120VAC - I don't have any 12VDC appliances/items that plug into one of those cigarette lighter connectors.
I have a 600W PURE SINE WAVE INVERTER hardwired to the battery bank and run two extension cords from the Inverter to the Home entertainment Center location and also to the bedroom location. The extension cords are run inside WIRE-MOLD (Lowes) completely out of sight except where the multi-port extension head is located on the back of the table top or inside the entertainment center cabinet. Then i just plug whatever we want to run into them when camping off the power grid.
600WATTS is a over-kill but was a Pure Sine Wave model with remote and available at a good price ($149)... I also run all of my cell phone chargers, NOAH WX alert radio, couple of lamps, computer charger, motion detectors, or any of the other so called necessities of life small 120VAC items that need to be used when camping off the grid. Momabear has plugged in her electric blanket when it is chilly watching HDTV or DVDs. It also runs my coffee grinder for making fresh made bean coffee. I started out using a very low power Inverter but found out real quick I was needing another 120VAC small item plugged in for something. The 600WATT PSW Inverter is just great for what we do...
We are setup to run all the things we want to run when camping off the power grid and then be able to re-charge the batteries to a good 90% charge state the next morning during breakfast using our 2KW Honda generator for a 2-3 hour generator run time. Then we can do it all over again for the next day/night battery run.
We are very successful camping of the power grid doing this. Even the Squirrels and Bears like to watch NCIS in full HD mode sometimes...
My Posts are IMHO based on my experiences - PM me Roy and Carolyn
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