random idea... but wanting to get a chilled esky?

was thinking about it.. would it work though?
with a low powered TEC ( not sure 20watts? )
have a few ideas like for camping.. 12v battery? haha
but all controlled voltage.. so can turn it up and down? again not sure what sized tec would be needed..
do you think this would work?
one reason for me.. i sometimes have a full fridge ( food ect ) and havnt got the cash spare at the moment to have a beer fridge running...
but something like this would just kinder sit in the shed ( 240v -> 12v converter -> voltage control unit ? ) and i could switch on throw in beer/drinks ect?
seeing as though i have a few esky's lying around.. and low powered TEC's are cheap
im guessing that i could either put it on the bottom or side with a heatsink ( old comp one? ) on the hot side.. and a decent sized alu plate on the cold? to spread the coldness?
who knows haha another mid night thought 

was thinking about it.. would it work though?
with a low powered TEC ( not sure 20watts? )
have a few ideas like for camping.. 12v battery? haha
but all controlled voltage.. so can turn it up and down? again not sure what sized tec would be needed..
do you think this would work?
one reason for me.. i sometimes have a full fridge ( food ect ) and havnt got the cash spare at the moment to have a beer fridge running...
but something like this would just kinder sit in the shed ( 240v -> 12v converter -> voltage control unit ? ) and i could switch on throw in beer/drinks ect?
seeing as though i have a few esky's lying around.. and low powered TEC's are cheap
im guessing that i could either put it on the bottom or side with a heatsink ( old comp one? ) on the hot side.. and a decent sized alu plate on the cold? to spread the coldness?
who knows haha another mid night thought 










