Chip model: TES1-12704 --TEC1-12704Number of component pairs: 127Wire specification: lead length 70 +/- 5mm RV standard wire single head 5mm tin-platedInternal resistance: 2.5~3.5 ohm (ambient temperature 23 +/- 1, 1kHZ Ac test)Maximum temperature difference: Tmax(Qc=0) above 65.Working current: =4A (when starting at rated voltage)Rated voltage: DC12V (Vmax: 12V)Cooling power: Qcmax 36WAssembly pressure: 85N/cm2Working environment: temperature range -55~83 (too high ambient temperature will directly affect the cooling efficiency)Encapsulation process: standard 704 silicone rubber seal all aroundColour: whiteMaterial: semiconductorSize: 30 x 30 x 3.2mmPackage Contents:1 x Thermoelectric Cooler PeltierOnly the above package content, other products are not included.Note: Light 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.