4 Liter AC/DC Portable Mini Fridge Cooler Warmer (Black) Cools to 32 degrees below ambient temperature This Cooler & Warmer is a "Green" product, it cools and warms using advanced semiconductors, free of CFC's and refrigerants Operates on DC 12V (cigarette lighter in car, boat), AC-110V or 220V (in home) Built-in adaptor included Hot/Cold, on/off switch. Red/Green LEDs indicate warming or cooling status Dimensions - Outside: 11" x 7-1/4" x 10" - Inside 8-1/2" x 5-3/4" x 5-1/4" (HxWxD)