The thermoelectric cooler adopts 12710 heat dissipation module, which has better heat dissipation effect. The cooling block has a larger area and can contact more air for rapid cooling. There are four heat-dissipating copper pipes inside, which can quickly dissipate heat, thereby improving the cooling efficiency. It can be used to make small refrigerators, mini ice air conditioners or computer cooling equipment. After the foam box test, the cooling end is -1 degree Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:Black Material:aluminum Package Contents: 1 x Semiconductor cooling plate 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.