With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
I made one peltier cooler box similar to yours yesterday with a Polystyrene box. The cooler box consists of 2 pieces of peltier module that consume 120W in total.But I think the key of getting lower temperature is insulation. Since you opened a big hole on cooler lid, I doubt that hot air would back from that hole.
Join 2 million + to receive instant DIY inspiration in your inbox.
© 2016 Autodesk, Inc.