... B:Power supply AC110-240V , DC12V ,battery C:Digital display insulin fridge ,mini refrigerator ,diabetic travel bagModel: FYL-YDS-BInput voltage: AC220V / DC12VCooling ... of insulin,interferon and some specail medicals* Two options of power supply pattern for selection: D/C12V A/C110V-240V* The mini refrigerator ... temperature can reach 8 degrees) 2'c ~8'c diabetic mini refrigerator,insulin fridge