Cheap And Discounts Four-stage Cooling 4 Layers of Temperature Difference of 107 Degrees Semiconductor Cooling Chip TEC4-24603 24606 Voltage 14.6V Wholesale. Buy Directly From Merchant SKYBOOM Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.