... in 2011 AC/DC/Battery powered 12 hours,low power Medical equipment dison insulin case is lightweight and small, support battery power ... or home. Also can be used in clinics, hospitals, emergency medical services, home care,etc.Dison portable medi-fridge advantages:1 ... ,5.9W/DC7.4VProduct Net weight540gMicro medi-fridge accessories: Dison medical equipment insulin case control panel as below: