* 7L * Electronic transformer for power supply design * AC220V or DC12V select power supply mode * Configure household voltage power cord and car cigarette lighter plug wire * Portable * Refrigeration temperature can reach 5℃ * Heating temperature can reach 60℃ * Can be used for 12V power supply on vehicles such as cars or boats * Volume: 300 (L) * 300 (W) * 325 (H) mm * Package specification: 1*1 set