Description Product dimensions (L x W x H): 40*40*3.8mm Quantity of items: 1 Batteries included? : No Battery(ies) / Battery(ies) required: No Spare parts availability: Spare parts information not available Chip model: TEC1-12705 External dimensions: 40 * 40 * 3.8mm, number of component pairs 127 Wire specification: lead length 100 5mm RV standard wire with single end 5mm tin plated Internal resistance value: 2.4~2.7 (ambient temperature 23 1 , 1kHz Ac test) Large temperature difference: Tmax (Qc=0) above 61 . Working current: Imax=5 (when starting at rated voltage) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 45W Assembly pressure: 85N/cm2 Working environment: Temperature range -55 ~83 (excessive ambient temperature will directly affect refrigeration efficiency) Packaging process: standard 704 silicone rubber sealing around Packaging standard: foam box, storage condition, ambient temperature -10 ~40 Storage conditions: -40~60