ADVANCED TECHNOLOGY-- Semiconductor coolers are a form of solid state cooling. The thermoelectric peltier adopts semiconductor technologies and electronic assembly techniques. ^^ FEATURE-- Refrigeration effect depends on the size of the cooling space, ambient temperature, heat insulation, seal ability, etc. ^^ WIDE APPLICATION-- This thermoelectric cooler can be widely used for small space cooling, air cooling dehumidification, semiconductor refrigeration learning theory and more. ^^ EASY INSTALLATION-- The semiconductor refrigeration has compact size and simple construction for easy installation, convenient to use. ^^ GOOD COOLING EFFECT-- It has low noise, and can cool down quickly, ideal for small area cooling.