Normal operating voltage is 12V 6A, support for 5V2A power supply use, but the effect is worse than 12V power supply.5V belongs to the work, the effect is relatively poor. But for cell phones, computers and other cooling is more suitable.Use temperature range: 50 or less. In the 12V work under the surface temperature of the kit can be up to 10 degrees , can not be freeze will start condensation. Cooling electronic products need to pay attention to condensation.This kit is a DIY kit, if you need other functions, please make your own!Machine power:12V 50W or soInput voltage:12V6A (5V2A)Colour:As ShownMaterial:MetalSize:Machine size:with bracket size 100x100x95mm or soPackage Contents:1 * Small refrigeration platformOnly 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.