Get ice cold in minutes or heat to boiling by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even for your own custom car drink warmer/cooler. Since they consit primarily of semiconductor material sandwiched between ceramic plates and have no moving parts Color: white Material: Semiconductor Model: TEC1-12706 Size: 40mm x 40mm Voltage : 12V (A) : 4.5A QMax (W) : 50W-60W Package Contents: 10 x Heat Sink Only the above package content, other products are not included. Note: Light reflection 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.