ITEM NAME:DC 5V 19.4W Thermoelectric Cooler Peltier Cooler Cooling Q9R4 DC 5V 19.4W Thermoelectric Cooler Peltier Cooler Cooling Q9R4 Thermoelectric Cooling Module Eco-friendly, no refrigerating fluid is used Compact size and light-weight Noiseless, reliable and maintenance-friendly Cooling or heating by changing current direction Model: TEC1-04905 Rated Voltage: 5V DC Max Current: 5A Max Temperature Difference: 67 deg C Max Voltage: 6.2V Max Refrigerating Power: 19.4W Couples: 49 Size (L x W): Approx 1 x 1inch / 25 x 25 mm Color: White Wiring: Red line for anode, black line for cathode. Package Includes:1 x Thermoelectric Cooler Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Thermoelectric Cooling Module. Cooling or heating by changing current direction. Model: TEC1-04905. Couples: 49.