"FWIW the 12V option is almost worthless. It uses about 10 amps, runs continuously and just barely cools. Not surprising as you are using 12V power to heat the refrigerant."
No longer true I am also pleased to be able to confirm, as some others have also mentioned.* When my eutectic system failed, a system which is great until it developes leaks, then very expensive to repair, I kept the well-insulated frig and converted it to 12v only via a Waeco Coldpack conversion set.* It runs on about 1 amp draw, holds her at 4 degrees C no trouble, and with just the addition of an Airbreeze wind turbine to the couple of solar panels I had already added, we can run it 24/7 on the pick with the batts staying essentially fully charged...if there's a wind...minimally discharged and easily brought back up next morning if a still night, with some sun or a bit of travelling & alternator charge.
Here is a similar dsign with specs...
-- Edited by Peter B on Friday 5th of August 2011 04:50:50 AM