DescriptionAre you looking for a professional, yet affordable cooling sheet? Areyou in search of a sturdy, trustworthy tool that can do multiple jobs atonce? If yes, look no further! Our professional cooling sheet must meet your needs. It is one of the best choices for you.Features- Color: White. - Material: Electronic Components, Wire. - Size: About 4.00X4.00X0.37cm/1.57X1.57X0.15inch. - Internal resistance: 2.1-2.4. - Large temperature difference: TMAX (QC=0) above 670. - Working current: IMAX=4-6A. - Rated voltage: 12V. - Refrigerating power: QCMAX50-60W. - Working environment: Temperature range from -55 to 830. - Made of premium material, it is durable and practical in use. - Compact structure, small, light in weight. Precise temperature control. - Connect to a power supply to feel the hot and cold that is produced on both sides. - Producing power by heating one side and cooling the other. - This thermoelectric cooler uses high-end refrigeration module which has high power and good durability.