Chip model: TEC1-12705 Wire specification: lead length 100 +/- 5mm RV standard wire single head 5mm tin plated Internal resistance: 2.4~2.7 ohm ( temperature 23 +/- 1, 1kHZ Ac test) Maximum temperature difference: Tmax(Qc=0) above 61. Working current: =5 (when the rated voltage starts) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 45W Assembly pressure: 85N/cm2 Working environment: temperature range -55~83 (too high temperature will directly affect the cooling efficiency) Encapsulation process: standard 704 silicone rubber seal all around Colour: white Material: semiconductor Size: 40 x 40 x 3.8mm Package Contents: 1 x Thermoelectric Cooler Peltier Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!