Description: TEC1-12705 40*40 Chip Type: TEC1-12705 Dimensions: 40 * 40 * 3.8mm element number 127 on Internal resistance: 2.5 ~ 2.8Ω (ambient temperature of 23 ± 1 , 1kHZ Ac test) Maximum temperature: Tmax (Qc = 0) over 67 . Working current: Imax = 4.3-4.6A (rated at 12V) Rated voltage: 12V (Vmax: 15V starting current 5.8A) Refrigeration power: Qcmax 50-60W Working environment: temperature range -55 ~ 83 (high ambient temperatures drop directly affect the cooling efficiency) Packaging process: four weeks standard 704 silicone rubber seal Package includes: 1*TEC1-12705 Cooler Module Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.