This product is characterized by its compact structure, small size, lightweight, low mechanical vibration, and low noise. It also boasts high reliability with an operational lifespan of at least 10,000 hours. cold finger: n6.4mm.Max cooling capacity: ≥400mW@77k@23℃ input voltage: 12VDC cooling time: 190J@80K@23℃:≤5min steady-state input power: 150mW@80K@23℃:≤4W maximum power consumption: 12W operating temperature: -45℃~+71℃ storage temperature: -55℃~+85℃ MTTF: ≥10000h weight: ≤265g