High efficient Danfoss compressor Reliable durable and corrosion-resistance refrigerator Change any colors you want Portable and easy carry Energy saving and cooling, protecting the environment Up to -18℃ Runtime sounds as low as 38 decibels Excellent cooling performance even at high temperatures The fully hermetic compressor has integrated control electroincs, electronic thermostat, low voltage protection, electronic fuse and automatic polarity protection so the 12L is able to maintain temperature and work safely.