40mm 12V DC cooler fan heatsink kit for cooling 3D Printer, TEC1-12706 Thermoelectric Peltier. Each pack includes: 1pc Dual ball bearing 12V DC fan, 1pc heatsink, 1pc thermal tape, 1 metal grill, screw mounting screw nut set. Fan dimension: 40x40x10mm, 12V DC, wire 2-pin-2.5mm connector 5.9"/15cm, speed: 6500rpm, airflow 7.93CFM, noise level: 28 dBA, life time: 50000 hours,, start up voltage: 7V DC, working voltage range: 10.8-13.2V DC.