im trying to cool a box 12" l x 6" t x 8" w to at the lowest temp. of 50 degrees. it will have a positive aire flow of 8 cfm and will have a thermostat.But my problem it will a heat sink work or what are my other options.My design is like a cooler that plus into your car but I would like it to be 110v.any one have any ideas. Thanks for any help to get this going...Bill